The Frostline Hat is built for ultimate winter and alpine weather protection. Water-resistant, ultralight 30D Pertex® Endurance fabric the elements away from your face and neck, while Posh Pile™ fleece provides warm, soft, wicking insulation. A zip-out face mask and fleece-lined earflaps provide adjustable protection from biting wind and snow, and the foam brim snaps up for greater visibility when you're eyeballing the route ahead. Convertible protection built to withstand harsh winter weather, the Frostline Hat is a stylish, utilitarian choice for completing a cold-weather kit.