SEALSKINZ Mautby Unisex Waterproof Warm Weather Ankle Length Bamboo Lined Sock Seamless, Thin & Comfortable Hydrostop to Block Water Penetration

Waterproof - three layer construction for warmth, durability and waterproofing Comfort - Bamboo lining for moisture control, insulation and comfort. Flat toe seams prevent rubbing and blisters. Hydrostop - a silicone-like (although it is silicone-free) elastic taping around the inside cuff of the sock. This added protection reduces the chances of water dripping down your leg into your sock Support - zonal elastication for added support. Flat toe seams prevent rubbing and blisters Please note that due to the close bond between sock cuff and skin, over prolonged use, some people may experience minor skin irritation due to the Hydrostop barrier rubbing against the skin. For those who experience any irritation, we recommend that Hydrostop socks are only used outdoors and not for a prolonged period of time.