Description *One size fits most. The Jetstream Beanie was born from the same fabric as the celebrated Jetstream Jacket. A lofted micro-grid fleece backer supplies warmth while the GORE-TEX INFINIUM with WINDSTOPPERA(R) membrane blocks drafts from your dome and forehead. The Jetstream WS Beanie is a great choice for mid-season hunts. One of our favorite Sitka Gear pieces. Specs Weight 1.6 oz Material GORE-TEX INFINIUM(TM) with WINDSTOPPER(TM)Technology, Stretch-woven polyester face Manufacturer Warranty Warrantied against manufacturer defects