A high performance boxer-brief made with luxurious merino wool and fused with our SilverAir anti-odor technology. An intelligent grip system prevents the legs from riding up or bunching. Perfect for travel but so comfortable you'll want to wear them every day.

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SilverAir Merino Wool Underwear
SilverAir Merino Wool Underwear
SilverAir Merino Wool Underwear
Jet Black 2
Graphite Grey
Jet Black 1
Jet Black 2
SilverAir Merino Wool Underwear
SilverAir Merino Wool Underwear
SilverAir Merino Wool Underwear
Jet Black 2
Jet Black 2
Jet Black 2
Electric Blue
Electric Blue
Electric Blue
Electric Blue

Boxer Brief


$ 35.00

  • Electric Blue
  • Jet Black 2
  • Graphite Grey
  • S
  • M
  • L
  • XL
  • XXL
    • SilverAir + Merino Wool prevents odor build-up 
    • SmartGrip™ System helps keep leg bands in place 
    • Made from 17.5 Micron New Zealand Merino Wool
    • 90% Merino Wool, 5% Metallic, 5% Spandex
    • Manufactured in China

    Measurement Guide


We want you to love your gear and offer a try-on guarantee for your first pair of underwear. If you don't love it, let us know within 30 days of purchase and we'll either send you a different size or issue a full refund.


17.5 Micron Ultrafine Merino Wool. No Compromises.

For the base fabric of this underwear, we sourced ultra fine New Zealand merino wool for it's natural ability to regulate temperature and resist odor. A hint of spandex is added so the underwear does not lose it's shape and a double soft premium waistband feels like a cloud on the skin and won't leave any marks.

SilverAir Shirt


Taking odor control to a whole new level.

Merino wool is naturally resistant to odor-causing bacteria, but silver actively neutralizes any bacteria it comes into contact with. That's why we infuse our SilverAir technology into the underwear to give it the best possible anti-odor performance in the market.

SilverAir Sock


A grip system that prevents ride-up

Inspired by grip systems in high-end cycling apparel, we designed a custom grip using soft silicones that you barely feel against your skin but which creates just enough resistance for the leg band to stay in place.

SilverAir Shirt

Customer Reviews

Based on 91 reviews
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Gregory P.
United States

Reviews are true... THESE ARE AMAZING

Just like everyone else; I was very skeptical that these would work as advertised. I was wrong to worry and will be buying more. They are amazing. I didn't believe they could hold up for a few days of wearing; so I wore the **** out of them for 5 days straight. They continued to be fresh and I could have gone longer. They exceeded my expectations and definitely will only take 2 pairs on my next 10 day trip. The other part that is fantastic is the leg opening grips. I already forgot the fancy term for this feature; but the fact of the matter is I have NEVER owned a pair of trunks that stay put. They always ride up, bunch up and require all day maintenance. The first day I wore these; it was at the end of the work day that I realized I was comfortable the entire day. No ride ups, bunch ups or anything. They stayed right where they should be and I love them. Shocked by how much I love them and very happy. I've read a few reviews that have some whiners regarding the leg grip feature not being that great ... honestly I think they are crazy. They stay put with no noticeable grip or pulling. I love these trunks and I am already getting ready to buy some more. Please make some more colors and thanks for a great product.

Jonathon P.
United Kingdom

Skeptical but oh my God they work!

I travel, a lot, and the biggest thing is long plane journeys and then meetings. So these looked like a very good idea. But I was skeptical. I wash underwear daily, these can't be any different. How wrong I was! No smell no sweat and Oh so comfortable! In fact they worked so good I actually tested to see how many days I could wear without washing. Whilst not all day I finally washed on day 6... But more out of habit they still didn't smell! So bought another 3 pairs which I am leaving to replace others as they wear out. If in doubt... Buy... You won't regret it!

Jay U.
United States

Best Pair of Boxer Briefs

Excellent product; worth every penny. I'd like to see more colors and some patterns. Keep up the quality.

Joseph M.
United States

Underwear and socks

While the underwear does do what the brand claims and enables the wearer to use them for a few days without having to wash the sock do not hold up to the claim. In addition I the band on the underwear is a bit to tight and can cause chafing making these uncomfortable to wear while doing distance running. Apart from these two issues the product is of very good quality and very comfortable. I hope they will continue to improve on their design.

Juan B.
United States

Extremely comfortable for travel! Worked as advertised!

I bought two of these silver lined merino wool underwear. Tried them out on my last trip to China. Worked as advertised. Very comfortable no ride ups! No odor at the end of my trip of 26 hrs! The only reason I don't give 5 stars is that the ones I used on the way to China (blue ones) tore in the "taint" area. There is a hole there now. I looks like in this pair the wool was very thin in that area.... I can still wear them but they may not last too much longer. The other black pair I wore on the way back seem much more robust. They did not tear and washed them and still look good.