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Icebreaker
Anatomica Boxer + Fly - Men's

4.653266331658291 out of 5 stars
398 Reviews
$45.00
Color:Black2

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Anatomica Boxer + Fly

The Icebreaker Men's Anatomica Boxer + Fly combines a trail-worthy performance with comfort you crave every day. Its merino wool blend offers long-lasting softness, and it's thermal-regulating, moisture-wicking, and quick-drying for a solid performance while backpacking. Merino wool is also naturally odor-resistant for a touch of freshness when there isn' a washer in sight.

Details

  • Adventure-ready boxer built comfy enough for every day
  • Merino wool blend excels at thermal regulation and odor control
  • Flatlock seams feel smooth to the touch
  • Item #ICE00H8
Responsible Collection
Responsibly Sourced
Material
83% merino wool, 12% nylon, 5% Lycra
Cut
boxer brief
Inseam
5In
Anti-Odor
natural attribute of merino wool
Manufacturer Warranty
1 year

What do you think about this product?

Overall Rating

4.5 based on 56 ratings

Review Summary

1 Stars - 3 reviews
2 Stars - 5 reviews
3 Stars - 3 reviews
4 Stars - 8 reviews
5 Stars - 37 reviews

Fits True To Size

Screen reader users: the following list provides a visual scale to illustrate the product fit. Please refer to the heading above for the fit type in text.
Runs smallTrue to sizeRuns large

Customer Images

Here's what customers have to say

The merino wool underwear is described as extremely comfortable, soft, breathable, and odor-resistant. Customers report a great fit and support from the fabric. While some note the higher price, most feel the quality and performance justify the cost. Overall, the product is highly recommended by reviewers.

AI-generated from the text of customer reviews.

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5 out of 5 stars

October 7, 2025

Great product. I use these for every day wear as well as hiking, running and general fitness activities. Great quality and I will definitely buy again in the future.

Sam J
ExpertVoice.com

Originally reviewed on ExpertVoice.com

5 out of 5 stars

October 6, 2025

The fit is perfect. The feel next to my skin is very natural. loins are very happy.

Mike H
ExpertVoice.com

Originally reviewed on ExpertVoice.com

5 out of 5 stars

October 4, 2025

Comfy. Hygenic. Packable.

Very comfortable while on assignments as a Wildland Firefighter. (No more "swamp-a**!) Another great aspect is that they pack small and are lightweight saving valuable room and weight constraints in my "redbag".

Brian(Michael) P
ExpertVoice.com

Originally reviewed on ExpertVoice.com

5 out of 5 stars

September 27, 2025

comfortable men's underwear

These are the most comfortable breathable underwear I've ever worn. They have held up very well over the last couple years.

Jason S
ExpertVoice.com

Originally reviewed on ExpertVoice.com

4 out of 5 stars

September 20, 2025

Green and Mean

I bought these to replace the cheap off the rack briefs I've been using. So far I've survived a Western summer in them, but may update my score depending on how the winter treats me. Otherwise lightweight, comfortable and seemed to have a great job with moisture wicking.

Cody F
ExpertVoice.com

Originally reviewed on ExpertVoice.com

5 out of 5 stars

September 9, 2025

Good boxers. Good fit and work well for active people who sweat. Don't hold odor as much as cotton or synthetics.

Michael T
ExpertVoice.com

Originally reviewed on ExpertVoice.com

5 out of 5 stars

September 8, 2025

Wool underwear is the only way

Ive tried a lot of the performance/hiking underwear on the market and wool is hands down superior. I love these Icebreakers. I have 7 pairs now and its the only thing I wear backpacking or hiking now. Love them

Zach P
ExpertVoice.com

Originally reviewed on ExpertVoice.com

4 out of 5 stars

September 6, 2025

Not the most comfortable

Not the softest merino out there but not bad otherwise.

Ethan F
ExpertVoice.com

Originally reviewed on ExpertVoice.com

4 out of 5 stars

September 4, 2025

Underwear are comfortable and great for all day use. I’ve used them for daily wear, hiking and some climbing. Will be in the rotation for winter use too. I found the waistband to be comfortable and non-restrictive. They did ride up a little bit so I may find a slightly longer pair next time.

Chris M
ExpertVoice.com

Originally reviewed on ExpertVoice.com

3 out of 5 stars

September 4, 2025

Don’t hold up.

This was my first time using merino wool underwear. I was excited my the idea of wool underwear because I’ve been wearing wool socks for some time and love everything about them. The underwear was nice to start with but after about two months you began to see the thinning of the wool and after 3 more months I had gotten a hole in a pair I bought. They do what they advertise but just don’t seem to hold up. They are worth it for the price we pay but I don’t think I would recommend for someone who would be paying full price.

Chris k
ExpertVoice.com

Originally reviewed on ExpertVoice.com

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