The SealSkinz Mautby Waterproof Warm Weather Ankle Length Sock is the original, 100% waterproof ankle-length sock featuring Hydrostop which is the perfect barrier for use in wet and warm wet weather conditions.*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.SealSkinz Mautby Waterproof Warm Weather Ankle Length Sock Highlights-WATERPROOF PROTECTION IN WARM WEATHERWe took our original waterproof sock and gave it a bamboo liner to help you stay dry and cool in the warmer months ... More info