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Sizing notes

Measurements are stated in inches unless otherwise indicated.

CHOOSING THE RIGHT SIZE: If your body measurements are midway between two sizes, select the smaller size for a tighter fit or the larger size for a looser fit. If your body measurements result in different sizes, we recommend using your chest measurement for tops and your hip measurement for pants.


Rated 5 out of 5 by from Pricey but good I'm on a travel with a carry-on and general minimalism bandwagon. So I was looking for something that I can buy 3-4 pairs of and have that as my underwear set. Icebreaker undies checked all the boxes for me. They are pricey but deliver on the promise. Through casual wear, hiking or carry-on only travel I was able to utilize the same routine of 1 pair for 2 days, which I would not risk with anything cotton based. I would definitely recommend it to everybody who is interested in optimizing their underwear routine and getting something that is high quality, very comfortable, easily washable and doesn't stink up.
Date published: 2017-12-07
Rated 5 out of 5 by from My life until this moment has been wasted. Why didn’t anyone tell me about wool underwear?! Once you experience having your man-parts comfortably swaddled in a fine wool sweater, you’ll never go back to cotton again.
Date published: 2018-01-21
Rated 5 out of 5 by from Durable yet comfortable Worn the anatomica boxers for over a year. Some are washed twice a week, and still look and fit like new. The wool does not hold the perspiration stink from a long hot day working in the sun, nor do they feel warm as one would think wearing wool.
Date published: 2017-09-24
Rated 5 out of 5 by from Boxer Product review I commute 60 minutes to and from Manhattan each way, five days a week. The commute is composed of a 35 minute train ride, and about 25 minutes of walking. I mention this because comfort and durability in my undergarments are important to me, but are also hard difficult to find. Then a business associate recommended Icebreaker boxers. They breathe, are warm in the winter and cool in the summer, and give me the degree of comfort I require for both my regular work week, and my more active weekends. They are the most comfortable underwear on the market. Period.
Date published: 2017-06-30
Rated 5 out of 5 by from Best underwear - pants down! Will only buy Icebreaker underwear from now own. Boxer briefs are no-ride, super soft and comfortable, and importantly, breathable. Not ashamed that I rewore without washing and there was no stink.
Date published: 2016-05-13
Rated 5 out of 5 by from Great for my trips to Itsly When My husband and I travel we always pack very light. I make sure He takes 2 or. 3 merino boxers even if we are going for 40 days or more like when we walked the Pilgrimage Trail, Santiago de Compostella, in Spain, because He wears one pair and washes the other and they dry so fast, especially if you roll them in a dry towel at the hotel and step on them- they are almost instantly dry. Now, one problem with Ice breaker is the material is very thin and have had problems with them getting holes. But it's probably because I wash them so much. You know they say you don't need to wash them / just air them out, but personally, I just have to wash them daily. Now I don't wash the merino Shirts every time he wears them, but do wash the boxers every time. One thing about it, NEVER PUT THEM IN THE DRYER. Also, I always go a size up because My husband likes a looser fit.
Date published: 2017-05-02
Rated 4 out of 5 by from A great trek and travel choice! I wear these boxers year round and always take them traveling - especially trekking in Nepal. They are comfortable, easy to wash and dry quickly, do not hold odors. They take up little space in packing gear for treks and travel, including hiking in summers, skiing and outdoor activities in winter. I could only offer one downside and that is they wear out near the crotch seams before anywhere else.
Date published: 2017-05-02
Rated 4 out of 5 by from still the best underwear I can find I have been wearing IB underwear for the past 4 years. Just retired my oldest pairs (with many holes on them) a few days ago. Compare to some of the older ones, the new underwear feels a bid snug and lower waist. A big improvement is the tag at the back of waist band is gone which sometime caused itchiness. A bit on the pricy side, but it will provide great comfy service.
Date published: 2016-12-15
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