Benmore Aerowool Boxer Brief

Our customers often tell us that our briefs are the most important piece in their First Lite system and the Benmore is sure to live up to that sky high benchmark. We married our top-shelf Merino Wool for odor mitigation and thermal regulation with the incredible moisture wicking properties of our outerwear technology, 37.5 by Cocona, and created First Lite Aerowool. Anytime a premium is placed on moisture evacuation during active hunting or hunting in warm climates, Aerowool is your new go-to base layer.





Product Details

Layering Position

  • This is your next-to-skin layer, the first layer you put on in the First Lite System
  • Features

  • True to Size: Purchase your normal size to wear under other layers
  • 17.5 micron, ultrafine First Lite Aerowool Fabric featuring 37.5 by Cocona Active Particle Technology
  • 4" Inseam
  • Comfortable Jaquard waistband
  • Aerowool is naturally antibacterial, meaning there is no treatment necessary to retain its odor resistant quality even when used for several days in a row
  • Aerowool is designed specifically to keep you dry and comfortable in high exertion or high temperature environments and activities
  • Aerowool mesh vent panels maximizes ventilation
  • Flat lock seams for next-to-skin comfort
  • 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 Next to Skin
      Material First Lite Aerowool
      Product Weight
      Primary Usage

Product Video

Aerowool Bottoms

Build your Kit


of 5
44 Reviews
Runs Small
Runs Large
Comfy! 12/14/2018

I bought 2 pair of these boxer briefs - they're very lightweight, and you don't get wierd rub in those uncomfortable places.
Feel good for temp control too

Nickname: Blair
Height: 6'2" - 6'4"
Weight: 260lbs - 270lbs
Size: XL
Location: New Zealand
Use: Upload
Why discontinued? 10/20/2018

Love these - disappointed discontinued!

How it fits
Size Medium - is perfect 35 inch waist.

Nickname: Michael
Height: 5'10" - 6'
Weight: 190lbs - 200lbs
Size: M
Location: Massachusetts
Use: Lifestyle
Comfy, but just a tad small 8/29/2018

Overall, I like these, but I do wish the waist was just a bit higher. They seem to be kind of low rise, I don't know if that's by design or not. It doesn't stop me from wearing them though, that's for sure.

Nickname: KB Dave
Height: 6' - 6'2"
Weight: 180lbs - 190lbs
Size: L
Location: Utah
Use: Lifestyle
Top Notch Technical Gear 8/29/2018

I have several First Lite pieces and have loved them all and these boxers are no exception. The Aerowool is extremely soft and breathable. I picked up two pair to try out on the Wonderland Trail during a cold snap on the mountain. I did 9 days, 93 miles in these shorts and never once got chafing or that itchy "wet butt" feeling. They're truly an excellent product for any hot weather or high intensity outdoor activity.

How it fits
I'm 6'1", 250, athletic cut and these fit really well. I like the tapered but not tight feel. Makes them great camp shorts as well as underwear.

Nickname: Mike
Height: 6' - 6'2"
Weight: 240lbs - 250lbs
Size: XL
Location: Washington
Use: Spot & Stalk
Super soft 8/11/2018

Great fitting and super soft wool. I bottom of the crotch is mesh and they do a great job of keeping everything cool on hot summer scouting hikes here in NE Iowa

Nickname: Bryan
Height: 5'10" - 6'
Weight: 190lbs - 200lbs
Size: L
Location: Iowa
Use: Lifestyle
Lives up to the hype 8/1/2018

Never in my life did I think I would spend $30 on a single pair of briefs, but these are the real deal. I usually run warm and have a hard time finding briefs that don't trap moisture/heat, but wick moisture and breath well. I am planning on ordering more pairs once they come back in stock.

How it fits
Fit true to size

Nickname: Trevor
Height: 5'8" - 5'10"
Weight: 180lbs - 190lbs
Size: M
Use: Spot & Stalk
Comfortable & Doesn’t Stink 7/28/2018

I bought a couple pairs of these while they were on sale and ended up replacing pretty much all of my boxers with them. Very comfortable and don’t stink like synthetics when you sweat. Only complaint is they get a little stretchy.

Nickname: Tommy
Height: 5'4" - 5'6"
Weight: 130lbs - 140lbs
Size: S
Location: Illinois
Use: Lifestyle
Took them to the limit 7/23/2018

So a bit of TMI but I took these to the limit. On a 5 day turkey hunt at 10k feet in the battlement mountains these are all I wore. I decided I wanted to really see when these would be unwearable and unbearable. I have been In a combat zone not being able to shower or change for upwards of 20-30 days and I know the limits of the ordinary underwear and these exceeded my expectations. My first thought was these should be crusty and unwearable in about 3 days. I can honestly say on day 5 (I hung them up each night to dry) they had very little smell to them and had just started the crusty phase. I will be replacing all my underwear with first lite boxer briefs.

Nickname: Wess
Height: 6' - 6'2"
Weight: 230lbs - 240lbs
Size: XL
Location: Colorado
Use: Spot & Stalk
Dont Hold Up to Moderate Use 3/25/2018

I used the Benmore's this past elk and waterfowl seasons. They didn't even last 4 months. I back country hunt for elk so maybe they are meant for hunters who put on less miles. I only wear them hunting. My buddies have a couple pairs as well and they all fared the same fate... less than a season of use before they start badly tearing in the lower crotch. The performance is great but not worth the money for their lack of durability. I am going back to the synthetic briefs i have that were way cheaper and have lasted me 2+ seasons so far. For the record, i cant preach enough about all of the other first lite gear I have. These just didn't meet the bar.

Nickname: tb1443
Love em, quality gear! 3/22/2018

Im really liking these Benmores. I have a pair of Dobson also and like those very much as well, but the 4" inseam on the Benmores is great. These stay very cool and comfortable, no smell after several days. The only "downside" is i have a lot of camo undies now! Try keeping some solids in stock would ya?! ;-)

Nickname: Brad S.
Best drawers I’ve worn 3/7/2018

Don’t usually review stuff. I’ll put it this way I ordered 3 of em and now need more. I put on my regular drawers today and can’t stand em compared to these ones. You won’t regret getting these!

Nickname: Chris Checketts
Excellent 3/2/2018

Never thought wool underwear would be comfortable but these things are great. Even 4-5 days in still dry. Won’t be making any pancake batter with these things.

Nickname: Gilly
Pleasantly surprised 2/28/2018

After having trouble with other brands of boxer briefs , I decided to give the Benmore Boxer a try. These are not like the others. These stay put instead of climbing your legs like a Spider Monkey!

Nickname: Aspiringhillbilly
Comfortable as all get out! 2/26/2018

These things are very comfortable, great fit, no smell. Make sure you follow the sizing on them. But overall exactly what you expect from First Lite. Great Job!

Nickname: MIke D
Super Comfortable 2/18/2018

Great first base layer. Tend to ride up a bit, but super comfortable. Holding up well to washing too.

Nickname: Gregory
Great underwear 2/7/2018

I really like the new Benmore. Just the right length. I like these better than the Dobson by far, and they are very comfortable. I wear these during the early warm deer season. Just right.

Nickname: Tres
Ahhhh 1/23/2018

My absolute favorite piece of FL gear I own. I am slowly replacing all other skivvies I own with these. Amazing moisture movement, I wear them as much as I can when it’s hot out, seriously if I want afraid of wearing out the only pair I have I’d wear them 7 days a week from late spring to fall. The only reason I’d switch is for the red desert or the aero wool ones. I even wear these to work, and they’re great I work outside so temperature and moisture regulation are a must.

Nickname: David
Great Product 1/15/2018

Purchased late summer and used them in early archery in MT, late Sept back-country backpack WY mule deer hunt, MT pronghorn in October, MT deer and elk in October through late November. Also took to Mexico for 2 weeks to test in very warm/humid conditions. Performed as advertised. Fight odor well and dry quickly during activity. Comfortable in hot/humid conditions. Also dry fairly quickly after hand-washing during hunting/travel. Seams do not chafe with backpack waist belt, which is a big deal since most times my camp and harvested critters ride in my backpack.

Nickname: Dark2Dark
BUY MORE 1/14/2018

These are great shorts. I am 35 waist - size medium. Great fit and product - no improvement needed. Very comfortable. Snug fit but not annoyingly tight and they don't ride up. Had a few months and just wash and dry regularly. No issues.

Nickname: Michael B.
Same ol' wool undies 11/30/2017

I'm more of a backpacker, but still hunt from time to time and I LOVE my aerowool base shirts, they're great at managing smells while spending a week in the wilderness sweatying and backpacking. I've tried various wool undies in the past and had bad luck with fit, and them holding shape/supporting my manly parts when rolling miles on the trail. Needless to say I haven't found a pair that was worth the cost, most don't hold shape and you end up chaffing everything. Anyways, these were on sale so I bought two pairs in hopes they would be as great as the tops i purchased. I was wrong. I'm wearing a pair now sitting at my desk and they've already lost any support they had for my goods and are i just know i couldn't hike some 18 mile days without hating life. I'm super disappointing, but at least glad i got them on sale. I'm sure they're alright sitting in the tree stand and hiking some short miles but any kinda real activity i'm going back to some nike dryfit or under armour undies.

Nickname: Tito
Great boxers for the outdoors 11/3/2017

I picked up the Benmore Boxer Brief knowing I needed something that would wear well underneath either an UnderArmour or another brand of long underwear. I don’t have tiny chicken legs -- you probably won’t see me on the elk hills without some serious working out on my cardio, and it looks like these were the ticket. They fit my quads/glutes just fine, but I made sure to carefully eyeball the size chart, picking XL for my size 38-40 waist depending on how close to Thanksgiving and how much rowing I’ve been doing. There’s an inspection/branding tag on the outside of the boxer which will invariably lead to some early morning pre-coffee confusion on my part but don’t fret the actual tag is painted on the inside so as not to chafe. The fabric is a little thin, but these aren’t meant to be an insulating layer -- they’re meant to wick moisture away from the skin and eat a little of the body odor you’re sure to generate as you drag your buck out of the woods.

So how do they fit? Honestly they fit pretty well. I’ve been monitoring them as I hunt throughout the season and they are holding up nicely. I bought two pair to rotate through a large chunk of my hunting season. Admittedly I’m not going to be just using two pair throughout my four weeks in the woods this season. That will be another test for another day. Perhaps I’ll subject my office mates to a stink test. That’s appropriate for an IT guy right?

I wore them in the field for the better part of a week, the same pair. There was no chafing to speak of, and the waistband didn’t roll despite a little belly from a lot of beer and hummus this summer overseas. The seams appear to be in the right location as to not irritate you while you walk long distances, and they have slightly different fabric in the crotch region, owing to their temperature mapped Merino wool. The temperature outside wasn’t cold, so I can’t speak to warmth, but they did wick moisture well and didn’t stink even at the end of the week. I was with my wife, she would have told me.

Now, would I have purchased them at full price at nearly $50 for a pair of boxers? I’m not sure. I’d almost certainly have one or two around for long range backpacking trips at that price given that they are comfortable and they cut down on odor by a large factor. However, I’m not going out to change all of my boxers over at that price. For what they are -- an outdoor odor eating boxer brief in a merino wool blend, I’d definitely recommend a pair for your next hunting adventure.

Nickname: Alex
Not durable enough 11/2/2017

Bought these merino boxers back in June and by October I've worn a hole in the crotch. I don't do anything too crazy with them they've been on a hand full of hikes and scouting trips and only worn for a few consecutive days. No more than 4 days at a time. I've got multiple pairs of these so I'm thinking about retiring them for strictly hunting trips to extend the life of the garment. So in short I would recommend them to someone who only wears them a hand full of times a year but I wouldn't recommend that they get thrown into your regular underwear drawer due to being a more fragile fabric.

Nickname: Daniel
Great 10/9/2017

I think I will eventually have enough I can wear them every day both in the field, home and work. I love them!

Nickname: Blake
Comfortable in the heat. 10/5/2017

Great boxer for hot days in the field. You will stink before these boxers do. I only have a few gripes. They do stretch a little after a few days and I don't see the point in paying extra for a camo pattern. I don't think anyone would hunt in these as an outer layer.

Nickname: Daniel
ultra breathable, no stink 10/4/2017

These are my favorite pair of underwear. Breathe like a dream and can handle many wears before getting funky. They're not too tight like a lot of boxer briefs, they offer the perfect amount of room down there and are also really soft on your skin. Great for hunting but just as good for regular activities as well.

Nickname: Graham
No Crotch Rot 10/2/2017

You can wear these things for a solid week in warm weather and as long as you don't have a #2 accident, you could wear them longer without washing. I felt like the dirty kid in school wearing these so much, but after a quick sniff test in the mornings they were still game.

Nickname: BFD
Awesome 10/1/2017

So comfortable. Perfect length. I spend a lot of time in Central and South America and these are going to be game changers for travel and everyday use.

Nickname: Michael
I'm Sold 9/25/2017

Great moisture transfer, no smell and I'm a smelly guy. So impressed with this product, far superior to any other product I have tried.

Nickname: Kelly
Best boxers I've ever had. 9/25/2017

Hands down the best underwear I have. Have worn for multiple days in the backcountry covering ground for elk, they were always comfy and i never noticed any funk. We'll definitely order a couple more pairs.

Nickname: RFelkGuide721
I need more 9/22/2017

My only regret is I didn't buy more of these, which I will be fixing. Never thought I would say I spent more than a few bucks on underwear but man these things make a huge difference. They really do keep things aired out and comfortable. Will probably end up being the only underwear I own, they are that good.

Nickname: Nathan
Quality boxer breifs 9/21/2017

I choose the benmore because I liked the short length better than the longer boxer shorts. The have held up well so far and I am satisfied with their performance.

Nickname: Brad
Outstanding! 9/15/2017

I wore these in Southeast Asia in the hot and humid environment and they were outstanding! I wore some other moisture wicking underwear as well and these outperformed them by a long shot! They dried out quickly even there! They are also very comfortable

Nickname: Eric
Almost perfect 9/15/2017

Finally, a shorter length boxer/brief from First Lite! Almost too short though, I'd prefer an extra 3/4" on them but it's not so much of an issue that they ride up. I wear Benmores daily and haven't found a better boxer yet. Great for hot and cool days alike. I only put on the Red Deserts for the coldest and least active days now. Really put them to the test on hot days this summer and I was very pleased with the performance, support, and coolness. My only real gripe is that they get a little loose after a couple days in the field but they fit like a dream again after washing.

Nickname: JayCreegs
Nice shorter option 9/15/2017

Breathe great and a nice shorter length option for the boxers

Nickname: Tony
I'm never wearing anything else hunting or hiking. 9/3/2017

Bought a pair of these on a friends recommendation. Super impressed. All day antelope hunting in 90 degrees and forgot I had them on. The next week elk hunting with cool mornings and 80+ afternoons and they functioned great.

Nickname: Super Impressed
Yes, yes, yes 8/24/2017

Used them from the swamp in the South to out west in Wyoming, they are a winner. No stank, no problem. Buy them.

Nickname: Nickster
"Bad"ass 8/23/2017

These things are great While being bad ass they will give your ass feel great and dry. Right out of the package I wore them for a couple days, and those few days felt just dandy on my package. No doubt a great base layer for any occasion their "normal" length makes them great for normal wear with shorts as well as pants. In the field or around town they are my new favorites. I have worn them from Wyoming to swampy hot and humid Alabama with zero swampy nether regions. As an Army guy in the field going commando during training or deployment is pretty common for us, these have changed that for the better.

Nickname: Nickster
awesome keeps the funk away. 8/19/2017

Picked up two pair of these bad boys, after using poly for a few years and not being able to handle the funk these things are a must.

Nickname: Greg
Game changer 8/18/2017

These have been so great that I am now wearing them daily. They dry amazingly fast, hardly any smells after hunting all day in 95+ degree weather, superior comfort, no chaffing or irritation areas. First Lite continues to blow me away with every product I purchase.

Nickname: Jason
Extremely comfortable 8/12/2017

These are the one of the best fitting boxers I own. Of the three varieties that first lite has to offer, I put these at the top.
They are shorter than most boxers, but they don't ride up at all. They are very soft and lightweight making it feel that are not there (not in a wierd way)
They are quick drying and so far, they are holding up to multiple washings

Nickname: Kelly
Class of their own 8/12/2017

These boxers have exceeded any expectation I could have dreamed of. I wore one pair for a week straight and they fit the same as the first day and had no odor. I believe they will be durable as all of those days were with an IWB kydex holster, and there are no signs of that abrasion. I am a 32" waist and the medium is spot on like the sizing chart says.

Nickname: kyle
These are Top Notch! 8/1/2017

I've been wearing the Benmore boxer briefs this summer in the often times sweltering humidity of Virginia and have been very impressed. They breath incredibly well, wick moisture faster than other merino wool briefs I have, and most importantly don't stink! I've worn them during the week while at work and over 3-4 day weekend fishing excursions. The materials and stitching are top notch and are proving to be more durable than I expected. These will be a great part of my baselayer for the fall. I like that they are shorter than the Dobson and Red Desert. I'd love to see a straight aerowool brief. Keep up the good work!

Nickname: Joseph
Fantastic Undies! 7/21/2017

I absolutely love the Benmore AerowoolBoxer Brief. I love several things about them. First, even though they are relatively short for boxer briefs they don't ride up and up and pinch. Second, the waistband is perfectly designed to be substantial enough to hold them in place but minimal enough that it doesn't bite, even under a heavy backpack. Third, they stay really dry and don't get clammy even in scorching temps. I live in the desert in New Mexico. I road-tested the boxers in up to 100 degree temps carrying a 60 lb pack between 3 and 11 miles a day for 3 days straight without ever taking them off That's over 72 hours straight with lots of sweaty miles and I still felt fresh. Amazing. The claimed moisture wicking properties of the 37.5 by Cocona technology is legitimate.

I don't think I will ever wear a different underwear on any hunt from Dall sheep in the arctic, Stone sheep in the Canadian rockies, to desert sheep in the sonoran desert of Arizona. In fact, I have started wearing these underwear daily around town.

Nickname: Brandon
These boxers are amazing 6/27/2017

I spend a lot of time in the field and typically run a little on the hot side. I thought I would be using these only when the temps drop but they work better than advertised and I am wearing them in 90+ degree weather in the field and loving them. They are top quality and I will be making these my go to boxers for the majority of the year. I plan on buying more of these.

Nickname: Nate