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Icebreaker
Anatomica Boxer + Fly - Men's

4.285714285714286 out of 5 stars
63 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 63 ratings

Review Summary

1 Stars - 3 reviews
2 Stars - 5 reviews
3 Stars - 4 reviews
4 Stars - 10 reviews
5 Stars - 41 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 product offers exceptional comfort and breathability from the merino wool fabric, which is moisture-wicking and odor-resistant. Customers report a flattering, supportive fit that stays in place without bunching or chafing. The boxers are versatile for a range of activities, providing warmth in cold weather and coolness in hot weather. While the construction is generally durable, a few customers noted some wear and tear after extended use. Overall, the product is considered a worthwhile investment by many customers.

AI-generated from the text of customer reviews.

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5 out of 5 stars

October 28, 2025

Perfect for the backcountry!

These are my now go to for all backcountry adventures. They are comfortable, breathe well, and they don't smell after days of backpacking. I have two pairs and looking to get a few more, something I would pay full price for without expertvoice.

Brian H
ExpertVoice.com

Originally reviewed on ExpertVoice.com

5 out of 5 stars

October 24, 2025

Outerwear?

I wore these as outerwear on a group ride and got compliments the whole time, extra breathable, almost too much coverage!

Joseph T
ExpertVoice.com

Originally reviewed on ExpertVoice.com

5 out of 5 stars

October 22, 2025

They have a really nice fit and are very comfortable. Seems to have high quality stitching.

Jordan S
ExpertVoice.com

Originally reviewed on ExpertVoice.com

4 out of 5 stars

October 22, 2025

Great product, obnoxious tags

The products are comfortable and functional. I have a lot of Icebreaker gear. I would suggest losing the oversized and uncomfortably placed tags. I’ve removed many of them, but they are sewn into the seams rather than having their own stitching. They can’t be completely removed without damaging the product. The merino is great.

Levi D
ExpertVoice.com

Originally reviewed on ExpertVoice.com

3 out of 5 stars

October 18, 2025

Just a Tad Off The Mark

My ExpertVoice reviews are written as if I paid retail since the whole point is to along with making quality products we need to do whatever it is we do and do it safely affordable and available it also so we have experience and knowledge about products and brands that we can recommend and spread the word to people about so those people go to a retailer and pay full price. Now I love Icebreaker, I have acquired many of their products over many years and they’re almost always on point. I really wanted to love these boxers but to me they had one fatal flaw; the fabric and fit causes them to ride up and if boxers ride up they are nothing more than scrunched up tightie whities which I don’t want which is why I buy boxers. If the fabric held its shape a little better and wasn’t so loosie goosie it might have more integrity it might keep the legs from riding up deep into the crotch, and I mean they ride up deeeeeep!! The quality is as you’d expect from Icebreaker which is top notch. Just be prepared to be pulling wedgies on the reg when wearing these.

Steven B
ExpertVoice.com

Originally reviewed on ExpertVoice.com

5 out of 5 stars

October 18, 2025

Great wool underwear

It’s the only underwear I pack for field work and personal travel. I’ve got a few pairs and they don’t stink like any cotton or synthetic underwear even after two days of sweat and work.

Daniel T
ExpertVoice.com

Originally reviewed on ExpertVoice.com

5 out of 5 stars

October 15, 2025

Comfortable

Very comfortable and true to size. They are on lighter side (as designed and advertised), so we’ll see how they hold up over time, but on a three day trip they did well and did not over stretch, even with a pack belt creating downward pressure.

Seth T
ExpertVoice.com

Originally reviewed on ExpertVoice.com

4 out of 5 stars

October 15, 2025

I bought these to try out Merino Boxers. I find them to be very usefull and comfortable for trips where I know I wont be able to shower for some time. They are light weight and breathable leading to all day comfort while hiking long distances. My one problem with them is that the back has one central seam which can ride between your cheeks at times. It's not very noticeable most of the time while moving around and something I found I have gotten more used to.

Ryan B
ExpertVoice.com

Originally reviewed on ExpertVoice.com

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

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