Sanctuary Insulated Bib Pant
Silent Construction 37.5 Insulation

The perfect complement to the Sanctuary Jacket for those late season hunts when the wind cranks up and the temperature drops down, the Sanctuary Insulated Bib is the extreme cold weather component of the First Lite Layering Kit. The Sanctuary bib is constructed with a proprietary combination of seven layers of fabric and insulation carefully positioned to maximize warmth and stealth while still allowing you the freedom of movement you need to take the shot. Stay Longer in your stand on those days when others are heading for home.



Product Details


  • True to Size: Purchase your normal size to wear over other layers
  • Actual Weight: 60oz (size large)
  • High back, waist, knees - 100g 37.5 Cocona Insulation
  • Silent construction provides quiet insulation and wind-proofing
  • Moisture resistant DWR exterior repels snow and rain
  • Thigh Cargo Pockets
  • Exclusive 37.5 fabric uses Active Carbon Technology moving perspiration (human signature) to the outside of the garment where it is functionally neutralized
  • Insulated high back with suspenders
  • Proprietary drop seat zipper system for complete thermal regulation and instant call of nature response
  • Covered by First Lite's Warranty

    • Sizes

      Available in men's sizes: SM, MD, LG, XL, XXL


      Machine Wash Cold and Hang Dry

      Cut Shooters Cut
      System Position Insulated Outerwear
      Material 37.5 by Cocona
      Actual Product Weight Size MD
      Primary Usage Tree Stand, Waterfowl

    Product Video

    Sanctuary System

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    of 5
    49 Reviews
      1 star 2 stars 3 stars 4 stars 5 stars
    Technical marvel for late-season bowhunting
    During late-season bowhunting in OH last year, a deep, extended cold spell showed me just how many weak links I had in my outer layering. I did my research and decided on FL’s Sanctuary bibs and jacket. These bibs are ridiculously well-designed, comfortable, and warm. The fabric is quiet, with the exception of different, slightly noisier material on the seat (for durability, I’m guessing). Decent water repellancy. Sizing is right too. I’m 5’11”, 35” waist, and thick in the legs, and the L bibs fit well. Good job, FL.
    - Josh on 3/17/2018
    Perfect planning and execution for a late season treestand piece
    With it's pricetag, I was hesitant to spend the money on one jacket. All I can say is that this is worth every dollar in my experience. This is the warmest jacket and bib combo I own, hands down. It's the attention to the small details that make the sanctuary set a fantastic combo. The hood is perfect, warm while allowing you to see out of the peripherals. Pockets are purposefully placed. I could go on and on about how great the Sanctuary set is. I wore this during the late ML season here in NY when it was 0 degrees out. With one base layer and one good mid layer, I was pretty toasty in my treestand. You'll be glad you spent the money when it is below 30 degrees out. Nice water-resistant material. NOT durable however, so don't plan on busting through brush and briars (this is not what it is intended for). I LOVE the full zip sides on the legs. The two-layer thigh pocket is PERFECT. I can use the zipper to secure items I don't use as often (tin of dip) and then the range finder goes into the stretch pocket for easy access. The butt-zipper is a nice touch, It came in handy when nature calls and you have 4 layers to take off.
    - SyracuseHunter on 3/9/2018
    Sleeping bags for your legs
    I’m a young hunter finding my way and acquiring new gear and after a few below freezing sits in coastal Virginia I realized I needed to upgrade my gear. This is my first set of bibs and may be my last. Sliding these on the first time they felt incredibly comfortable and it was like putting sleeping bags on each of my legs. Can’t wait to use these next season and love all the pockets. Something that turned me away from other sets of bibs.
    - MarineHunter on 3/2/2018
    Worth it
    I wore these deer hunting from a blind and also elk hunting in the Black Hills. (Temps anywhere from -10 to 30 above) This piece was the staple of my outfit during the late season. The only sliver of doubt I had was when I was on a glassing noll and a short, but intense, snowstorm came through and the wind creeped in around my ankles. They were covered in a fair amount of blood after packing out my elk but looked brand new after one cycle in the washer. Way better than anything else I have ever owned. Awesome product.
    - Nick on 2/27/2018
    Well pleased with Sanctuary Bibs and customer service with questions before purchase, was excellent.
    Just purchased the Sanctuary Bibs. I ordered a Large, and it fit fine (but not sloppy) over top of, a thin merino- wool base layer and a pair of jeans. I'm 6-2 and 175lbs and I'm sure the Medium would have been too short in the leg inseam area. Thankfully they fit nicely over (outside) my 1000 gram, rubber hunting boots too. The seating area is extra padded with an especially "tough" treatment to withstand the cold "seats" of winter. The only thing I would like to see added to future manufacturing, would be an additional, robust, water repellant, articulated knee, "facer" fabric guard, to protect the knee area from long term wear and water resistance when bending with knee on wet ground/snow. Very Good Value. Hope to review again, on the warmth of the garment, after some trials in the cold.
    - Doc on 2/22/2018
    Ultimate Winter Bibs
    Ive use my bibs in all situations ranging from 30-40 degrees down to sub 0. Hiking, sitting, stalking.. all of it. Perfect addition to anyone's gear who finds themselves in the cold. Great temperature regulation and overall very well built.
    - Curt on 2/15/2018
    There warm ,Lite,plenty of storage and love the camo pattern
    I haven’t had a chance to use them hunting yet since I just got them but the sanctuary bibs are everything I wanted in coveralls. There lite ,warm, plenty of storage pockets and love the camo pattern.Thanks First Lite!!!
    - ND Bowhunter on 2/15/2018
    So I need to read better!!! Check the fine print!!
    So after my first 2 star review and a immediate call from customer service. We discovered that I didn't read the fine print that these pants are WATER RESISTENT not waterproof. I will again state they are very warm and super durable than any bibs I have ever owned ,and I love the slip in pockets. I will now turn these into deer hunting pants and purchase the first light waterproof pants for waterfowl next season. I was super impressed with Nate from customer service who was very helpful and understanding. Keep up the good work and thank you for being so prompt with customer relations!!
    - Steve on 2/13/2018
    Good to -10!
    Best piece of late season gear I've ever added. Had them to -10 with only merino bottoms and regular pants under them and my legs never got cold in the stand. The side zips work great for being able to put them on once you get to your stand so you don't over heat.
    - Bryan on 2/9/2018
    Size runs smaller than indicated

    Bought the Sanctuary Bib and Insulated Jacket when it was on sale in November/December. Just used them 3 times for late season hunting.

    The combination did work well. I was out for (4) hours in 20 degree weather and stayed warm on all 3 outings.

    The sizing of the Bibs do not seem to be correct. I can fit into 40 waist pants, so the sizing chart said I needed to buy the XXL. The sizing chart also says that the Bibs are cut to fit over "other layers" When I hunt in cold weather I wear a wool Long John and a pair of old 24 OZ Woolrich Pants.

    When the ordered arrived I put on the Long Johns and the wool pants and tried to put on the Bibs. I could not zip up the Bibs. I had to remove the pants. ( Bought the Bibs on sales and it clearly stated no returns ) I could then zip up the bids. I was concerned how warm I would be with just wearing the long johns. My (3) hunting trips in temps of 20 degrees, I was warm.

    I am no means fat, but I am stout. All of the other outerwear I have bought can fit over the combination of the Long Johns and the Wool Pants in size XXL.

    My point is that the sizing runs small on the Bibs. I have a pair of Gizzlie gloves that I bought ( on sale, no returns ) that run small. My advice is to goto a shop that carries the FristLite and try what you want to buy on and make sure of the sizing. The quality is first rate, the functionality is first rate.

    I am just questioning the sizing.

    - JJS on 1/14/2018
    tested to the limits!
    I’ve been waiting until the end of our archery season in Minnesota to write this review. I wanted to test my gear through the nastiest weather before reviewing. Firstly, I had been researching cold weather archery clothing for a long time before pulling the trigger on the First-Lite Insulated Sanctuary Bibs and Jacket, along with a few under-garments. Upon receiving the items I noticed how silent the materials were. This turned out to be key in late-season when the woods are dead silent and sound carries in the cold crisp air. The bibs are pretty unreal. The full leg zippers that continue around the seat are really nice, especially on those longer walks to the stand. You can open up the zippers and release heat before breaking a sweat. There are two pockets with zippers and two pockets with stretchy openings. I used the stretchy pockets for my release and rangefinder. My legs never got cold and I was doing 2-3 hr sits in -15 degrees with -25 windchill. Now on to the Sanctuary Jacket. The jacket has a great fit in a size small for me. I’m 5’6” 135 lbs. I can layer underneath it and still feel like I have good range of motion. My favorite part is the material. It’s deadly silent. This is so important late season when there isn’t a breathe of wind, and everything is frozen. Sound carries really bad when like this. When the temps were in the teens I would wear just the thin base layer and the jacket but when the temps fell in the double digits below zero, I ended up layering with a merino long sleeve base layer and a couple of mid weight insulated fleece. I could last 2 solid hours in the stand when like this before the cold crept in. I couldn’t have asked for a better jacket. Super quite and extremely warm. The sleeves are tapered to allow for smooth shooting without your string hitting. The hood is a huge plus as well. I worn their insulated balaclava as well. I wish the balaclava had a tighter fit around the nose to keep it in place. Besides this small concern, everything was perfect and made my December month of hunting in Minnesota a memorable and successful one.
    - Evan on 1/12/2018
    Stay Warm!
    These bibs are amazing! I used them into the single digits tree stand sits during the late season in Minnesota and never got cold with only a base layer underneath. The zippers for venting come in handy when walking in and out to the stand. Quiet, comfortable and so far they seem very durable. Highly recommend these for low activity in temps below freezing. Looking forward to getting the matching jacket!
    - Kevin on 1/12/2018
    weird fit
    I found these to be way too tight in the stomach when sitting. Legs fit fine. I had XL (wear L in Kanabs) and not happy with the fit on these. Love FL but the cut is off on these. I switched to Sitka Fanatic bibs in XL and they fit fine.
    - 76chevy on 1/11/2018
    Awesome Bib
    I just love the sanctuary line. I was using the Sitka fanatic but much prefer the sanctuary. I hunt pressured areas on public land in northern MI and in Ohio. So once I get settled in I'm there for a long time.

    Though this is a cold weather set up I found it much asker to pack in than the Sitka. The zippers make great vents and I can roll the bib and coat up and stuff them in my pack and get dressed at my tree stand.

    Tons of amazing tech features and I love the cut of this line. I sat all day in this with base layers and was super comfortable in temps in the 20s. With some insulation base layering I think I could easily hunt in the low teens and I get cold super easy.

    No other product for white tails meets this set up. It's wind proof, warm and so darn quiet. I cannot give a high enough recommendation for this product!
    - David on 1/8/2018
    Perfect for stand hunting
    Waited until after season to put a review out. Definitely a great investment. Wore these all whitetail season in the stand and never once felt cold in my lower body. Usually only wore allegheny bottoms with a pair of sweatpants under. Still enough room for air to circulate yet it wasn't baggy. Even wore through a warm, wet blizzard and never once felt wet.
    - Christian on 12/11/2017
    Just got these in last week. Had a really cold weekend this past week in NC. Very pleased with how warm these bibs are. I am very pleased with my purchase and won't wear anything else. Planning on buying more first lite products. I would recommend these products to anyone. I just wish y'all made boots that were as warm as the bibs and jacket.
    - Caleb on 12/11/2017
    Picked up the Sanctuary Jacket and Bib on sale for Black Friday and couldn’t be happier. It’s hard to imagine any bibs being warmer while still maintaining mobility and low weight (relatively speaking, compared to lower quality late season gear). I’ve been out in 20-30F so far with winds, light rain and snow sitting in a stand and this set has taken it all in stride. I’ll be putting it to the test in January/February too when the temps really dip but I’m confident that it’ll hang just fine. Buy this set. it’s probably the last set of late season outerwear you’ll need.
    - Scott on 12/8/2017
    Well designed and warm
    These pants are great, they kept me plenty warm while stand hunting in Minnesota. Among the great design features is the zip open seat for when nature calls, but I did not like how loud the fabric on the seat is. overall there are pockets where you want them and everything is well put together. Don't think about it, jsut buy them if late season hunting in the North.
    - Joe on 12/4/2017
    Love them, but durability questioned
    I love these pants, very good at keeping you warm in cold Alberta winter stand hunts, but I am going to be completely honest and tell you not to wear them at all on your walk in or if you're sitting on anything that isn't a chair. I've worn mine maybe 10 times and I have a hole in the seat. Not huge, but it's there. I don't know if I got it from a barb or if I sat on a sharp stick. Either way it's there and for the money I'm not happy. Be very careful with these. Other then that, they are perfect for those really cold days. For that and the fact I'm still waiting on a call from First Lite to deal with this, I'm going to give them a 2 star.
    - Chris on 12/4/2017
    It took me a long time to pull the trigger on these pants, but I’m sure glad I did! Another home run by First Lite. Used them for tonight’s sit. Wasn’t too cold, but in low 20s with the wind chill. It really is like wearing a sleeping bag!!!!! Didn’t even wear base layers, just had sweatpants on! I’ll be wearing these bibs from now on. Can’t wait to test them in seriously cold temps. Thanks First lite
    - Kev on 11/25/2017
    Great Late Season Bin
    This is a great late season bib that will for sure keep you warm and comfortable! The only issue i have with them is they are not made for the hunter with a gut! They fit way to tight in that region.
    - Dan on 11/22/2017
    The best cold gear I’ve owned
    I’m coming off of 5 years with using Sitka whitetail systems and I must say that these bibs are my favorite cold gear to date. Hands down.
    - Wade on 11/21/2017
    Outer fabric
    The bibs do fit a bit snug around the stomach area however do have elastic in the back that will allow for mobility whether bending over or in a squatting postition. Elastic suspenders were of high quality and did a good job supporting the weight of the bibs. The pockets on the front of the bibs are a nice touch with the outer pocket on top of a zippered internal to allow you to store your phone or keys along with gloves or a call in the outer pocket for quicker access. The insulation on the bibs was thick and I have no doubt would have been able to keep more warm on the coldest of days. The outer fabric in the seat of the bibs was a bit to noisy for my liking but I understand it’s purpose. Ultimately I sent the bibs back because I was concerned the bibs outer fabric around the legs, albeit queit, wouldn’t hold up to areas of saw briars and thorns common to Northen Alabama. I would like to see a micro fleece/ Berber fleece outer or something that would be more durable, but the cipher Camo looked great for late season once the leaves had fallen.
    - Keith on 11/19/2017
    Warm and quiet
    Wore these on long cold days with only the 230g merino bottoms underneath. Very warm and quiet. Comfortable enough to sit on frozen ground. They shed light rain and sleet pretty easily without feeling wet or cold inside.
    - Evan on 11/18/2017
    These bibs are unbelievable. Comfortable, quiet, warm, and extremely functional. Wore these in North Missouri to whitetail hunt. The mornings dipped down to 20°F and The evenings got pretty close to 50°F. The leg zippers are great if you ever need to let some air in, and the hot hand pouches in the back are fantastic. Wish they would've sent me a sticker or two to represent my new gear, but hey, that's not what I ordered. I'll be back for some early season gear next season.
    - Alex on 11/15/2017
    Excellent camo pattern. Bow hunting on the ground with no blind and three white tails came within 10 yards and never seen me. It was so cold out that my face moisture started freezing up but this bib felt very warm and comfortable. No more ridiculous layering necessary. Roomy and well placed pockets too.
    - Jay on 11/14/2017
    Super warm
    These bibs are ridiculously warm and comfortable. The only issue I have with them is they're cut a little slim. I have to go up 2 sizes from my normal first lite size. I'm on the big side though.
    - Alex on 11/12/2017
    My wife got me this with the jacket last year for Christmas, finally got to break it in today. It was 19 degrees with a windchill of 8. Only my feet were cold for my all day sit in a tree stand. This gear is worth its weight in gold!
    - Prince on 11/10/2017
    Warm, quiet, but be careful walking around
    These bibs are definitely top of the line and as warm as you could want. I was only disappointed because on the first hunt with them, walking to the stand they caught on a broken limb and ripped. I understand they aren’t for bush wacking, but walking through the woods to the stand and ripping on a branch isn’t what I would expect from a $400 pair of bibs. They are quiet and warm though, just maybe baby them a bit.
    - Austin on 10/25/2017
    I love the sanctuary set. Warm, quiet, and full of great features. Expensive by man when its cold outside and you are warm and toasty it makes it worth every penny.
    - Curtis on 10/24/2017
    Late Season Requirement
    Once I made the purchase, there was no going back on these. They aren't cheap, but as with everything First Lite they are top notch and an absolute necessity for anyone who hunts a cold late season. All you need is the merino base layer, the sanctuary jacket, and a tree stand in the right spot. These will allow you to stay most anywhere, probably longer than you want to sit. Thanks again First Lite!!
    - Josh on 10/2/2017
    Best cold weather bibs I've found
    LIke the jacket, the Sanctuary bibs are outstanding for cold weather. I rarely ever wear more than just a base layer under these down into the 20's, they're that warm. The nice thing is they're vented with a zipper all the way across your rear so you can unzip to get some air flow as you're walking in then zip up when you get in the stand. If you hunt under 40 degrees these bibs and the matching jacket are a must have.
    - Timothy on 9/2/2017
    There is no competition
    I waited a full year to write this review so that I could put these bibs through the test of a Midwest winter and they vastly exceeded my expectations. I live in Kansas where the winters can swing to the mid 30s, all the way down to temps below zero. With the varying temperatures, these pants kept me very warm, dry, and comfortable. Sitting in the stand in late November in the pants I was as comfortable as if it was 60 degrees. The material is quiet for stalks as well, and the zipper system on the back of the pants are great for when nature calls and you don't want to fully undress! I was thoroughly impressed during both snowy and rainy days where these pants kept me very dry, and warm. You don't want to be caught in the woods during the winter months without these pants!
    - Joe with Livin' Large Outdoors on 8/3/2017
    Perfect still hunt bibs!
    I primarily still hunt from a climber so long hours of not moving can get cold. I've used several different brands of bibs, tried hand warmers in pockets and most everything else you can think of to stay warm...these bibs out preform all that stuff. Layered with some other First Lite pieces these keep me warm the entire hunt and with half the bulk of my old stuff. If you're a still hunter these are a must! For reference I'm 6' 180lbs and the M in these fit me perfect with a couple of layers underneath.
    - Lincoln on 6/17/2017
    Some Serious Bibs
    After buying and using the sanctuary jacket last year the bibs were a must have. Although I have not had the weather to try out the bibs, if they are anything like the jacket they will be super warm, quiet, well-made, and comfortable. Thanks First Lite making such an awesome product for the whitetail stand hunter.
    - Troy on 5/10/2017
    Easily the best bibs that I have found for late season deer hunting out of a tree. Got to use these for a solid week on a late December western Kansas deer hunt. temperatures hovered in the teens most mornings, these kept me toasty warm 20 feet up in a cotton wood allowing me to shoot a nice 4x4 mule deer. They are quiet but do not pick up burrs or snags. paired with the sanctuary jacket its a perfect late season combo.
    - Gabriel on 5/4/2017
    The Best!
    These bibs are by far the best cold weather stand hunting bibs available. They are super quiet, warm and waterproof.
    - Andy on 3/16/2017
    What every Hunter needs!!
    I have had these bibs for 2 years now and have hunted as far north as Nebraska and as far south as southern Texas. They have been a must have for me. Whether I've been laying in a field hunting geese or siting in a tree in Kansas late season. They've kept me warm! You won't be disappointed
    - Matt Stanton on 1/8/2017
    The first time I wore these was during a real hard cold snap in mid December. The wind chills were dipping below zero. I had on Sanctuary bibs and a pair of sweat pants. The hike into my stand is about a mile and I was SWEATING on the hike in! Luckily the butt flap zipper lets in tons of air and I was able to regulate pretty easily. Once on stand I was nice and toasty even with a sweaty base layer on. This (along with a North Branch jacket) was my first purchase from First Lite and I am completely sold. I will be purchasing more (as in, a better base layer. haha) very soon. Also, the fusion pattern is fantastic. I would highly recommend this product.
    - Jake H on 12/29/2016
    Sell your Heater Body Suit/IWOM
    I use to hunt out of an IWOM suit for late season. It was warm but I hated trying to snake into it while sitting in my lonewolf stand, after I had cooled down from the walk in. I also didn't like how I had to shuffle my feet in the suit to move. If I would have fallen out of the stand I would have been screwed!! I switched to the Sanctuary suit and its the best move I've made. I love that you can vent the legs on the walk in, so you don't over heat. I also love the fabric, its DEAD quiet and doesn't get loud in super cold weather like some fabric do. The other two things I love on the bibs are the stretchy outter pockets that are easy to get your phone in and out of while sitting in the stand and lastly the legs zippers are awesome. No problems getting the bibs on or off when wearing large bulky boots. Selling my IWOM and buying these SUPER warm bibs was the best late season move I've made!
    - Rick on 12/12/2016
    Out of the box
    Just received the bibs and they look awesome. Real thought has been put into the design. I have been wear a pair of Cabelas silent sued bibs last 3 seasons and the degree of thought and the tech put into these is immediately apparent. Most obvious is the drop seat when nature calls and the next thing that jumps out is the thigh pockets will sit below a harness. The fabric quality and zips all stand out. The real test will be Sat AM as supposed to be 25 degrees at first light. With 3 layers under my other bibs, legs have been cold. I will report back!
    - Michael B on 12/7/2016
    Hands Down Best Hunting Bibs
    I bought these bibs for late season extreme cold hunts in South Dakota and these bibs exceeded my expectations in every way. Between archery hunting from a tree stand and calling coyotes in January I regularly hunt in below 0*F temperatures. These bibs keep me very warm allowing me to stay on the hunt longer and be more successful. All of the pockets and features of these bibs are well though out and useful and the fusion camouflage keeps me hidden in any terrain. First Lite makes some of the greatest hunting outerwear hands down and they have made me a life long customer.
    - Kendall on 12/5/2016
    Awesome in the cold
    I just wrapped a hunt in N. Michigan. I was stand hunting when a blizzard rolled in and was able to stay in my stand from sunrise to sunset resulting in the harvest of a nice buck. One neat feature I loved is the stretchy pockets on the legs. I was able to keep my calls in there for quick access and not worry about them falling out. These are what I consider an athletic fit meaning they are not bulky. I had the allegheny top/bottom, merino liner gloves, beanie w/ brim, uncompahagre jacket and Sanctuary jacket on; awesome combo.
    - James on 11/26/2016
    Great pair of pants!
    Been wearing these in the upper teens in the AM and upper 40's during the day the past week and a half, these are an awesome pair of pants/bibs to add to my First Lite aresenal. Very well thought out and functional and very warm with just my Allegheny underneath. Well worth the money and wish I had gotten them sooner. First Lite knocked it out of the park with these.
    - Hancho on 11/16/2016
    Toasty warm!
    These bibs are amazing, hands down warmest I've ever sat in. These allow me to sit from dawn to dusk with ease!!!
    - John Steinhauer on 9/2/2016
    These bibs are the bomb!! Perfect fit, to move, length is perfect. Very warm, I like that the material is so quiet. I thought the Uncompaghre Puffy was fairly quiet but the Sanctuary is almost silent. I really like the reinforced seat to keep your behind dry and the the zipper system is perfect for when nature calls so you don't have to strip butt naked in freezing temps. Great job first lite for thinking of the treestand deer hunter.
    - Jimbo on 7/28/2016
    Must have for cold weather!
    Hunting Late Season whitetails in the midwest can get cold, but you will not get cold wearing the sanctuary bibs. If you hunt late season or just like to be really warm, these bibs are for you!
    - Mitchell on 4/25/2016
    Almost like these more than beer !
    These bibs do not limit you to what type of game your hunting. the zippers and venting ability allows you to open them up to breath when your hiking and then close them up to stay warm when sitting for a long period of time. I put these through the ringer bear hunting this year and they even held up to some nasty briar patches. It was in the single digits in the morning and then up in the 40's during the day and I was very comfortable. I like to wear the base layer and kanabs underneath them. I even wear them under my neoprene waders when duck hunting.
    - David on 4/10/2016
    This is by far the best cold weather stand hunting system available. Paired with the Jacket its WARM, windproof, waterproof, and dead nuts quiet. Sizing is dead on, they are sized to layer over clothes so just order you normal size and forget it. The bibs waterproof reinforced seat is a little noisy if it rubs but it is super tough and if you do use the jacket it is covered most of the time anyway. You wont be disappointed!!
    - N. Hedrick on 4/9/2016