The Outdoor Research Vigor Hybrid Beanie is a snug cap for high-output winter activities. The Beanie hat is constructed of spandex jersey material that provides the Beanie's functional ability as stretchy and breathable. The material in the Vigor Hybrid fabric is grid fleece, making the cap very soft and warm. Made for active lifestyle performance in cold outdoor weather conditions, ActiveTemp technology wicks sweat when you are mobile, working, and sporting about. The lightweight construction makes this hat easy to stuff into your pant pocket, or stuff in a bag. 94% polyester 6% spandex upper panel 63% nylon 23% polyester 14% spandex lower panel 1.0 oz./28 g Thermo-Regulating ActiveTemp™ Under helmet fit Concealed Ponytail Hole Backpacking, Casual, Hiking