Men Underwear

With traditional long johns, you often sacrifice weight and flexibility for sweet, sweet warmth – and the problem only gets worse the more you layer up. To create a better base layer from the inside out, our AKHG Boar’s Nest Base Layer Pants are made with innovative hollow-core fibers that...

Guys running in brisk weather tend to be in shorts (too cold), sweats (too baggy) or windbreakers (too chafing). Then there are guys who’ve seen the light: running tights. We built ours with ideal compression and made them with Dry on the Fly® fabric tech, the fastest-wicking, fastest-drying solution we...

Originally developed for the space program, ultra-light Aerogel polyester adapts to your body temperature for out-of-this world regulation. So it was the perfect insulation for the AirLoc base layer system. Engineered with body-mapped quilting for targeted warmth where you need it most. And stretchy jersey panels with gussets and articulated...

Full day and Fahrenheit rising? Cull discomfort and look good doing it in Armachillo® Bullpen® Boxer Briefs. The revamped Stay-Put Pouch paired with battle-tested cooling technology keeps you in the saddle longer.

Originally developed for the space program, ultra-light Aerogel polyester adapts to your body temperature for out-of-this world regulation. So it was the perfect insulation for the AirLoc base layer system. Engineered with body-mapped quilting for targeted warmth where you need it most. Stretchy jersey panels and a Crouch Gusset® flex...

When it's Texas-hot out there on the job site you need the absolute best cooling performance everywhere you can get it. So ditch the hot, sweaty cotton undies and pull on the revolutionary cooling of Armachillo® technology. Microscopic jade embedded in the fabric feels cooler on skin while the 91%...

Now even more chillin’ space! Cool-to-the-touch Armachillo Boxers are roomier for more comfort in simmering situations.

Ditch hot, sweaty, saggy underwear and round up Armachillo Bullpen 3D Boxer Briefs that reduce skin temperature as they support "the boys."

When it's Texas-hot out there on the job site you need the absolute best cooling performance everywhere you can get it. So ditch the hot, sweaty cotton undies and pull on the revolutionary cooling of Armachillo® technology. Microscopic jade embedded in the fabric feels cooler on skin while the 91%...

When it's Texas-hot out there on the job site you need the absolute best cooling performance everywhere you can get it. So ditch the hot, sweaty cotton undies and pull on the revolutionary cooling of Armachillo® technology. Microscopic jade embedded in the fabric feels cooler on skin while the 91%...

When it's Texas-hot out there on the job site you need the absolute best cooling performance everywhere you can get it. So ditch the hot, sweaty cotton undies and pull on the revolutionary cooling of Armachillo® technology. Microscopic jade embedded in the fabric feels cooler on skin while the 91%...

Don’t let summer’s scorch slow you down. This base layer tee features Armachillo® tech in every fiber, so it feels cool against skin and wicks sweat relentlessly. UPF 50 blocks the sun’s harshest rays, while anti-odor properties squelch stink through long, hot shifts. The cut sits close and layers under...

Nothing steams you. It’s as if coolant runs in your veins. Or maybe it’s the cool-inducing effect of your Armachillo® Undershirt. The silky, stretchy 4.9-oz. 91% nylon/9% spandex knit fabric is infused with microscopic jade that disperses heat – giving it cool-to-the-touch comfort unlike any other undershirt. Plus, it wicks...

Summer heat hits hardest from the waist down. But these base layer pants fight back with Armachillo® fabric that wicks sweat, squelches stink and cools skin on contact. Our Bullpen® pouch gives your goods the room and support they deserve, while a seamless waistband won’t dig in. UPF 50 blocks...

Nothing steams you. It’s as if coolant runs in your veins. Or maybe it’s the cool-inducing effect of your Armachillo® Undershirt. The silky, stretchy 4.9-oz. 91% nylon/9% spandex knit fabric is infused with microscopic jade that disperses heat – giving it cool-to-the-touch comfort unlike any other undershirt. Plus, it wicks...

Nothing steams you. It’s as if coolant runs in your veins. Or maybe it’s the cool-inducing effect of your Armachillo® Undershirt. The silky, stretchy 4.9-oz. 91% nylon/9% spandex knit fabric is infused with microscopic jade that disperses heat – giving it cool-to-the-touch comfort unlike any other undershirt. Plus, it wicks...

Full day ahead and Fahrenheit rising? Armachillo® Crew Undershirts keep you cool when the heat is on, and now you get 3 times the value! Microscopic jade embedded in the fabric creates a noticeable cooling sensation when it touches your skin. These lightweight, stretchy undershirts wick moisture and fight odor,...

When it’s so hot the hens are laying hard-boiled eggs, you need powerful cooling performance for your man parts. Shuck off those sticky, sweaty cotton skivvies and chill out with the revolutionary cooling of Armachillo® technology. Microscopic jade embedded in the fabric makes ’em feel cool and refreshing right where...

Nothing steams you. It's as if coolant runs in your veins. Or maybe it's the cool-inducing effect of your Armachillo® Undershirt. The silky, stretchy 4.9-oz. 91% nylon/9% spandex knit fabric is infused with microscopic jade that disperses heat – giving it cool-to-the-touch comfort unlike any other undershirt. Plus, it wicks...

Full day and Fahrenheit rising? Cull discomfort and look good doing it in Armachillo® Bullpen® Boxer Briefs. The revamped Stay-Put Pouch paired with battle-tested cooling technology keeps you in the saddle longer.