The Octaclava features thermoregulating ActiveTemp(TM) technology, UPF 30 sun protection, hinged, hybrid-mapped construction, and a low-profile fit for warm, breathable performance worn alone or underneath a ski, snowboard, or bike helmet. Versatile, Full-Coverage Cold Weather Head Protection The Octaclava provides versatile, full-coverage head protection from the elements while skiing, riding, climbing, cycling, or any cold-weather outdoor activity. Engineered with a hinged construction and a low-profile hood, this balaclava offers versatile protection and a seamless fit under a helmet. Its 100% polyester fabric is breathable, moisture-wicking, and quick-drying and features a hybrid-mapped construction for strategic warmth where it matters the most. Innovative ActiveTemp(TM) technology helps to regulate body temperature as the effort increases, and UPF 30 protection safeguards skin from harmful UV rays. Whether finessing the tools on a mixed climb or huddling for warmth during a windy chair ride on a powder day, the ever-versatile Octaclava is a warm, breathable performance layer for extending time spent outdoors in cold weather. Fabric Performance: Breathable Hybrid-Mapped Construction Wicking Quick-Drying Thermo-Regulating ActiveTemp(TM) Treatment UPF 30 Design Features: Hinged Construction Low Profile Hood