The Jetstream Beanie was born from the same fabric as our celebrated Jetstream Jacket and will keep your head in the game while trudging up into the biting wind or glassing on an exposed ridgeline. A lofted micro-grid fleece backer supplies warmth while the GORE-TEX INFINIUM with WINDSTOPPER membrane blocks drafts from your dome and forehead. Sitka Jetstream WS Beanie Optifade Subalpine One Size Fits All