Icebreaker Boxer Brief with Fly - Men's


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For unbelievable next to skin comfort, pull on the Icebreaker Boxer Brief w/Fly for Men. Made from 100% merino wool, the Boxer Brief is naturally moisture wicking, breathable, and odor resistant, providing all day comfort where it really counts.


  • 100% merino wool
  • 150g/m premium underwear
  • Functioning contoured pouch with fly
  • Relaxed fit
  • Articulated side seam
  • 3.3mm striped elastic waistband
  • B satin label at back right waistband
  • Script element in colored reflective heat transfer at upper left hip
  • Contrast stitch detail
  • Icebreaker pip label
  • Non itch, soft against your skin
  • Moisture wicking
  • Odor resistant
  • Breathable
  • Inseam: 5cm

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Review Summary

4.3 out of 5

15 Reviews

  • Build quality: 2
  • Great design: 2
  • Performance: 2
  • comfotable: 1

  • Bad design: 1
  • Cost: 1
  • Low performance: 1
  • rides up: 1
Comfort: 5 / 5
Durability: 5 / 5
Quality: 5 / 5
Fit: 3 / 5

15 Ratings & Reviews

Comfort: 5 / 5
Durability: 5 / 5
Quality: 5 / 5

25-34 yrs

April 01, 2012

The Icebreaker boxer briefs are extremely comfortable and look great also. The design and stitching make it comfortable but the merino wool is what really makes it comfortable. The merino wool feels nice in all conditions from hot to cold. They're a little pricey for boxer briefs but the quality and comfort that Icebreaker is known for makes them worth it.

Pros: Great design, Build quality
Comfort: 5 / 5
Durability: 5 / 5
FitClothes: 2 / 5

November 04, 2010

These are the very best pair of boxer briefs I have ever owned. Very comfortable, and supportive. Great for any activity. The merino is light and breatheable. Have had them in the wash only several times, but each time they come out, they look and feel new. A bit pricey, but well worth it. Highly recommended.

Pros: Great design, Build quality, Performance
Comfort: 3 / 5
Quality: 5 / 5
from 92109
25-34 yrs

Great Material & Fit. Rides up a bit though
December 16, 2010

There's no question if you want high performance underwear Merino Wool is the way to go. It doesn't smell, wicks sweat away, is light, and doesn't feel wet when wet. On the downside, these boxer briefs have a tendency to ride up my leg into the crotch area. For the price I expected a better fit. Trying my luck with some Minus 33 Merino Wool underwear next...

Pros: Great design, Build quality, Performance, Cons: Cost, rides up
Comfort: 2 / 5
Durability: 4 / 5
Quality: 4 / 5

They're ok.
October 10, 2011

I bought 2 pair of these for a trip. They worked well, but I notice after returning they usually sit in the drawer. Factors which keep them from being great include short legs, which is not usually a problem but they get a little loose which causes them to ride up a bit. For a trip where lightweight is important, they were great. Fast dry time. Easy cleaning. Great for travel, could find better options cheaper for everyday use.

Comfort: 5 / 5
Durability: 4 / 5
Quality: 4 / 5
FitClothes: 2 / 5
from SF, CA
25-34 yrs

So far, so good
April 16, 2013

While I can't attest to it's long term durability, it fits well and does a good job at wicking away moisture. The merino wool is nice and soft against the skin. Hopefully it holds up. Great for the price, so far.

Pros: Great value
Comfort: 5 / 5
Quality: 5 / 5
from Seattle
45-54 yrs

as comfortable as these things get
December 06, 2010

I didn't know what I missing with the wool. They are incredibly comfortable, warm when they need to be, not warm when they don't. It seems like a lot of money for underwear ... before you have them on. I can't speak to their durability as they are relatively new, but they seem very well designed and put together.

Pros: Great design, Build quality, Performance
Comfort: 2 / 5
Durability: 4 / 5
Quality: 4 / 5
FitClothes: 4 / 5

from Slidell, LA
25-34 yrs

They Work
December 21, 2011

The material is decent, as to be expected and the size is pretty true. I claimed them to be a bit large though, because they get pretty loose as you where them with no ability to bounce back into shape. To be more specific, the leg material stays loose, does not conform to the leg, and they go where they want to. The shorter inseam wouldn't be so bad if again, they hugged a bit better. Overall, they are nice, but stay in my drawer more often that not. I guess if you're wearing pants that may be a little tight, they are not very restricting as the under layer.

Pros: Build quality, Cons: Bad design, Low performance

They feel great work well and last.
March 08, 2010

These are really nice, fit true to size and seem like they are very well constructed. I recommend them to all who are looking for comfy under-roos.

February 14, 2010

I already own Icebreaker 260 undergarments so it was not hard for me to throw my money towards their boxer/briefs. These things are incredible, and at a great sale price they are UNBELIEVABLE!!

Just what I needed for the cold weather
December 29, 2009

They are great. The inseam is a little short but the material is great.

Ride up
May 02, 2010

These ride up my leg in loose shorts. The material is great, but the inseam is shorter than I expected.

great underwear
February 28, 2010

these are very light weight and don't ride up your leg when wearing jeans like cotton underwear.

Outstanding Underwar
March 25, 2010

As everything else by Icebreaker, these are extremely comfortable and durable. After putting them on, you barely notice you're wearing them. They provide magnificent support and are also very stylish.

Comfort: 4 / 5
Durability: 4 / 5
Quality: 4 / 5
FitClothes: 3 / 5

Hey, they work!
January 30, 2012

I normally wear boxers, but wanted something snug for multi-day athletic endeavors in the mountains. They are soft and comfortable with the odor-resisting qualities you'd expect from a quality wool garment. There isn't a trace of itchiness. Be sure to pay attention to the sizing chart. I never order anything in size small, but that's what they say a 32" waist is, and sure enough, they fit perfectly; snug but not constraining. Stuff stays put, as it were, but they move and breathe well, so you don't feel cooped up. A little pricey, but they do the job quite well.

Pros: Performance, Cons: Cost
Comfort: 5 / 5
Durability: 4 / 5
Quality: 4 / 5
from San Francisco,Ca. US
35-44 yrs

Gotta love these.
March 24, 2013

Threw out all my other underwear since I started wearing, Icebreaker. Extremely comfortable and easy to travel with. I just take a shower with them and use the left over shampoo,trow them over a towel rack and they are dry the next day.

Pros: Great design, Performance, comfotable

Also Available

Icebreaker Men's Boxer Brief with Fly Photo

Black/ Mineral, Cadet, Carbon, Cricket, Rocket and Turf.

Available sizes, while supplies last, include size small, size medium, size large, size extra large and size extra extra large: s, m, l, xl, xxl.

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