The Seirus Thick N Thin Headliner, Moisture-wicking, ultra-thin Thermax hood is combined with a technical fleece neck gaiter. 100% Polyester POLARTEC FLEECE - Provides a thermal insulation with proven durability, lightweight warmth and fast drying characteristics. A versatile combination for all cold weather activity ULTRA THIN - Head Liner with wicking hood, and technical fleece neck warmer to keep you warm and dry COMPLETE HEAD FACE and NECK PROTECTION - 4-in-1 protection. Wear as a helmet liner, balaclava, scarf, or neck-up, Thick & Thin where you need it! ONE SIZE - fits most - Also available in Junior size ESSENTIAL EQUIPMENT - A must have Accessory for skiing, snowboarding, and any cold weather outdoor activity​​