Synthetic TRI-BLEND Made in US OUTDOOR GEAR FOR WINTER WEATHER - The BlackStrap Dual Layer Tube keeps you comfortable in the snow whether worn around the neck or pulled up over your head and face for full coverage SKI HELMET-FRIENDLY DESIGN - Enjoy a secure fit under your skiing helmet, snowboarding helmet, snowmobile gear, snow hat, hoodie, head scarf, and other headwear QUICK DRY AND MOISTURE WICKING - Our patented breathable tri-blend fabric keeps you fresh, warm, and dry by wicking sweat off the skin and quickly evaporating FLEXIBLE FOUR WAY STRETCH - The BlackStrap Dual Layer Tube Neck Warmer provides extreme windproof warmth and 98% UV protection while allowing for freedom of movement, comfort, and flexibility DUAL LAYER COMFORT - Made with soft, durable fabric and designed to fit most adults, these face masks are washer/dryer friendly and lens-safe for wiping snow goggles or sunglasses