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Men's Kiln Long Boxer Brief
Midweight 250 Merino-X

From September elk to January mallards, the Men's Kiln Long Boxer Brief is the perfect solution for cooler weather. The 10" inseam and articulated construction are familiar to those who know our Red Desert of years past. Constructed of Midweight 250 Merino-X fabric, this interlock knit is being used in our boxer category for the first time to add super comfortable insulation in cooler weather.


The Kiln Midweight 250 Merino-X fabric utilizes ultrafine, 18.5 micron merino wool in a high loft, interlock knit to create styles that surpass expectations in the broadest range of temperature and weather conditions. Blending a small component of spandex into this knit, these lofted interlock pieces can withstand extended hunts in the field, regardless of the season.


The Kiln midweight 250 Merino-X is also available in a men's Boot Top Bottom.

$55.00
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Product Details

Layering Position

  • - Next to Skin
    • Features

      • - True to size: Purchase your normal size to wear over or under other layers
      • - 18.5 micron, superfine merino wool
      • - 95% merino / 5% spandex
      • - Interlock knit for high loft insulation and moisture management
      • - Jacquard waistband
      • - Fully functional fly
      • - Flatlock seams for next-to-skin comfort
      • - Machine wash, line dry
      Cut Athletic
      System Position Next to Skin
      Material Merino-X
      Actual Product Weight Size MD 6 oz.
      Primary Usage Spot & Stalk, Tree Stand, Waterfowl, Upland, Fishing

Product Videos

Kiln Top
Merino-X Technology

Build your Kit

Reviews

4.4
of 5
10 Reviews
Fit
Runs Small
Perfect
Runs Large
Fit
Small
Perfect
Large
Great wool (but waistband big) 12/12/2018

I wear a 32 (recommended 31-33 for medium). The waistband is loose and there is bunching of material around waistband.


How it fits
Runs large and loose

Nickname: D
Height: 5'10" - 6'
Weight: 170lbs - 180lbs
Size: M
Location: Utah
Use: Lifestyle
Fit
Small
Perfect
Large
Very Comfortable 12/8/2018

If you have never wore wool boxers you are missing out. These things are extremely comfortable. I wore these non stop for 4 days on a backpack elk hunt in Colorado and by the fourth day, they still did not stink. Mainly purchased for hunting but I think I'm going to switch to these for everyday wear.


How it fits
The fit is good around the waist, little baggy around the legs but I liked it.

Nickname: Scott
Height: 6' - 6'2"
Weight: 180lbs - 190lbs
Size: L
Location: Kansas
Use: Spot & Stalk
Fit
Small
Perfect
Large
Great product, need slight improvement 12/3/2018

As far as the sweat removal and odor these are top notch, and extremely comfortable. The caveat I did not like on these was the waistband wore out/stretched within about 5-10 sits and basically not wearable anymore. I do ozone my clothing, maybe that is wearing out the elastic waistband as they fit perfect the first time i got them and have gotten looser and looser to now will be a garage rag. I'm not a big guy by any means, so not like i was stretching it out. I have other base layers from FL and they are treated in ozone at same time and have lasted 2 years now and 0 stretch in elastic waistband, so can't tell for sure what the issue is.

Nickname: Kenneth
Height: 5'10" - 6'
Weight: 160lbs - 170lbs
Size: L
Location: Wisconsin
Use: Tree Stand
Fit
Small
Perfect
Large
Stank reduction device 10/19/2018

I ordered these with the goal of wearing them on a week-long elk expedition into the backcountry. I had high expectations; temps ranged from high teens to mid 50s, and I was planning on bringing a single pair of underwear that had to do it all. 7 days later, I emerged from the pines with a solid respect for the power of merino. Minimal odor despite many hard miles of sweat-soaked hiking. After day 3 I noticed some pilling on the thighs where my pants rubbed against the fabric, but only time will tell if that matters down the road.
The one 'downside'** I would say is that if your sleep system is warm enough to keep you comfortable, these underwear are probably too warm to wear to bed. Next time I'll bring something more lightweight to sleep in and hike in these during the day. **Not actually a downside. These are supposed to be warm.


How it fits
I'm a slim guy with a 32" waist and I felt like the fit was a bit loose during the initial try-on, but never had any issues with chafing or bunching. Overall, I highly recommend the Kiln underwear based on their performance for me.

Nickname: Austin
Height: 5'10" - 6'
Weight: 160lbs - 170lbs
Size: M
Location: Utah
Use: Spot & Stalk
Fit
Small
Perfect
Large
First pair 10/7/2018

I ordered a pair of these just before heading to Idaho for a 15 day Elk Hunt. A couple things that I would like to warn about are that in high output warm weather hunts these are a bit too warm. I wanted to order the lighter weight version but they were sold out. Also I normally wear a large size and these seemed a bit larger than I’m use to. Overall I think these are great. They are warm, keep odor to a minimum and feel great. Even though they seemed a bit bigger on me I still liked them. I will be using them every tree stand sit in Wisconsin now.


How it fits
Like I said, they seemed a bit bigger than I’m use to.

Nickname: Chad
Height: 5'10" - 6'
Weight: 190lbs - 200lbs
Size: L
Location: Wisconsin
Use: Spot & Stalk
Fit
Small
Perfect
Large
The best! 8/30/2018

These boxers are the best. Extremely comfortable, don't ride up, fight odors extremely well, and now with the addition of spandex, hold up better than the red deserts did. Now I just need about 15 more pairs so I can wear them every day.

Nickname: Clayton
Fit
Small
Perfect
Large
Best underlayer 8/29/2018

Much more comfortable and warm than synthetics.


How it fits
Super comfy and athletic fit

Nickname: paul
Height: 5'10" - 6'
Size: L
Location: Minnesota
Use: Tree Stand
Fit
Small
Perfect
Large
The best! 8/29/2018

These boxers are the best! The addition of spandex is a great improvement to the old style, and will hopefully solve the crotch wearing out issue.

Nickname: Clayton
Fit
Small
Perfect
Large
Excellent product! 8/13/2018

Awesome product! Extremely comfortable, and great in warm or cold weather. I thought they would be too warm in the heat of the day or on physical days in the field, but they performed great. No chaffing or places that rubbed awkward. Definitely recommend!


How it fits
I ordered the same size boxers as I had in other brands and they fit the same if not better.

Nickname: Joe
Height: 5'10" - 6'
Weight: 230lbs - 240lbs
Size: L
Location: Minnesota
Use: Lifestyle
Fit
Small
Perfect
Large
A must have in your kit 7/28/2018

I was skeptical at first because I loved the Red Desert Boxer but Kiln is even better! I not only use them for hunting, but I work as a firefighter hiking and working in the heat. They wick away moisture and are extremely comfortable! Of all my FL products, these are my favorite!


How it fits
I wear a 34”-36” waist paint and the Large fit me perfectly.

Nickname: Nick
Height: 6'2" - 6'4"
Weight: 200lbs - 210lbs
Size: L
Location: California
Use: Lifestyle