Even in sub-zero temps, you push yourself hard enough to work up a sweat, but ease off for even a minute and a clammy chill sets in – unless you're wearing this fast-wicking Dry on the Fly® Base Layer Pants. Lightweight and bulk-free, they're a high-tech mix of 85% drirelease polyester with 11% warm, itch-free Merino wool and 5% flexible spandex. So these drawers insulate without limiting your range of movement, naturally resist odor, and pull moisture from skin in a wick of hurry. A wide elasticized waistband won't dig into your gut. And the ingenious seat panel spares you from the discomfort of sitting on irritating seams.