The Men's Anamoose heavyweight neck gaiter in Tarnen® camo is a must have for cold temperatures. The Heat Boost™ graphene sherpa interior delivers insulated warmth without any bulk. The thinnest, warmest gaiter you'll ever wear. Product Features •Shell Material: Double layer fabric composed of 4-way stretch peached knit polyester bonded to Heat Boost™ graphene sherpa •Heat Boost™ graphene technology: A line of enhanced fabric super charged with graphene's thermal conductivity, moisture wicking