When it’s so hot outside that the hogs are “bacon,” you’ve got to take serious cooling action – and fast. So shuck off those hot, sweaty cotton undies and pull on the revolutionary cooling of Armachillo® technology. Microscopic jade – yes, the exotic green gemstone – embedded in the fabric feels refreshingly cool on skin, while the 91% nylon/9% spandex knit fabric whisks away moisture to nix chafing. The roomy fit gives you breathing space in the seat and thighs, while the light-yet-stretchy fabric won’t bunch or cling as you’re climbing, crouching, reaching. Smooth flatlock seams mean no lumps and bumps anywhere, ever. Wildly comfortable waistband, too – ours is 1½" wide and brushed for pinch-free comfort. And now they come in patterns so cool, you’ll be tempted to overshare your underwear!