SealSkinz Unisex Waterproof Warm Weather Ankle Length Sock With Hydrostop Socks

100% waterproof/breathable/Windproof Waterproof - three layer construction for warmth, durability and waterproofing Comfort - Bamboo lining for moisture control, insulation and comfort Hydro stop - reduces water ingress Support - zonal elicitation for added support Comfort - Flat toe seams prevent rubbing Hydro stop usage guide - SealSkinz Hydro stop technology creates a seal between the sock cuff and skin, Helping to reduce the amount of water from running down the leg and into the sock. Due to this close bond between sock cuff and skin, we recommend that Hydro stop socks are only used outdoors and not for a prolonged period of time. Incorrect or prolonged use can result in excessive rubbing against the skin and may in a very small minority of cases cause minor skin irritation. The Hydro stop seal material has been fully tested to EN ISO 10993-5: 2009 and is OekoTex compliant Thermal rating this product is rated 1 which offers lightweight protection for hot climates Product Care Wash at 40, Low Tumble Dry, Do Not Dry Clean, Do Not Iron, Do Not Bleach