A high performance boxer-brief made with luxurious 17.5 micron merino wool and real silver. Our custom double knit fabric weighs between 200-220gsm and has a terry finish on the inside that is incredibly comfortable and a dream to wear. The silver neutralizes odor causing bacteria and takes the natural anti odor performance of merino to the next level. A silicone grip system prevents the legs from riding up or bunching. The all new version features a gusset reinforced with nylon that is more durable against abrasion.

SilverAir Merino Wool Boxer Brief
Graphite Grey
Graphite Grey
Graphite Grey
Graphite Grey
Heather Grey
Midnight Blue 2
Jet Black 2
Racing Green
Monaco Blue
Jet Black 1

Boxer Brief

$ 40.00

  • Jet Black 2
  • Jet Black 1
  • Racing Green
  • Monaco Blue
  • Heather Grey
  • S
  • M
  • L
  • XL
  • XXL
    • SilverAir + Merino Wool prevents odor build-up 
    • SmartGrip™ System helps keep leg bands in place 
    • Horizontal fly provides easy access
    • Made from 17.5 Micron Merino Wool
    • Inseam length: 5.5"
    • 80% Merino Wool, 10% Nylon, 5% Metallic, 5% Spandex (220 gsm)
    • Manufactured in China


(based on body measurement in inches)


If you don't love your first pair, you can return it within 30 days of purchase for a full refund or a different size.


17.5 Micron Ultrafine Merino Wool. No Compromises.

For the base fabric of this underwear, we sourced ultra fine 17.5 Micron New Zealand Merino Wool for it's natural ability to regulate temperature and resist odor, while having a buttery soft hand feel that is dry to the touch. SilverAir metallic yarns neutralize bacteria and reinforce odor-control. Finally, a hint of spandex is added so the underwear does not lose it's shape over time. The waistband is constructed with a double-soft nylon that feels like a cloud on the skin and will not 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

SilverAir Merino Wool Underwear

SilverAir Merino Wool Underwear

SilverAir Merino Wool Underwear

SilverAir Merino Wool Underwear

SilverAir Merino Wool Underwear

SilverAir Merino Wool Underwear

Customer Reviews
4.6 Based on 275 Reviews
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Jazz, J.
United States United States

Love em!

They fit great and are super comfortable. The fly is a great addition. I bought the first generation of them that didn’t have a fly and like these better. I ordered the 8” long ones for winter, hopefully you’ll make those with a fly soon.

Joseph E.
United States

Greatly Improved

I've been rocking the Silver Air Boxer Briefs since the Kickstarter, and they're easily the best. The horizontal fly is brilliant. The grippy stuff on the legs is fantastic. The fabric is fantastic. However, this most recent iteration with the gusseted crotch (and the two-tone fabric in the case of the Grey pair) is an incredible improvement. The crotch had started to wear out on some of my first pairs, but the stress reduction on the fabric from this new construction is amazing. Well done! Please apply that to all the boxerbriefs!

Charles P.
United States

Close to perfect

I've tried pretty much every high end brand of men's underwear and these are some of the best. The Merino is super soft and the fit is overall very comfortable and at the same time supportive. I even wore them for 5 days in a row, which sounds gross, but I wanted to stress test them. they didn't smell at all after five days and I wash them just for my own peace of mind. I ordered a medium which is my normal size and pretty much everything and is generally a little bit roomy me if anything. the medium fit okay in the waist and legs what was quite compressive,especially in the crotch area. the customer service representative sent me a large without any questions asked and it fits very well. Great company and great products. I hope that they last a long time since it is a high price point

Yevhen SVG verified by SHOP
United States United States

I like how light it is, it's lighter than any other woolen underwear that I own, though when it comes to underwear it can always be lighter

Galvin C.
Hong Kong Hong Kong

Delivery issues

International customer so likely to have less of an interest to your company. I say this because I have previously purchased at least twice before and the delivery wait did not justify the cost of the delivery charge nor help your company against competitors who just delivery in less than half the amount of time at a few dollars more. This time round, however, I didn’t even receive the products ordered before they were sent back to your warehouses. I was in a meeting and the delivery person called. Couldn’t get in touch so instead of leaving a card or trying again it was to send the items back to the sender! I waited over the estimated ”upto 15 days” and then such poor service that it decides to go back to you. The delivery companies are outside of your control but there must have been some option ticked off to at least try one more time. And now instead of getting a refund straight away you have decided to wait to receive your product before considering it. Are you going to refund me the total cost or decide to refund the cost of the item and charge me delivery? This has just been terrible, terrible service. But as I said, looks like you don’t care even about repeat customers.