The original waterproof sock, with the added protection of Hydrostop™. The SealSkinz Dunton Waterproof All Weather Ankle Length Socks with Hydrostop™ are designed to keep you warm, comfortable, and on the move in a variety of wet weather conditions. Cold and wet feet can lead to all sorts of not-so-good things including numbness, blisters, frostbite, and even worse. These socks will keep you dry and on the move outside no matter what wet weather you encounter.SealSkinz Dunton Waterproof All Weather Ankle Length Socks with Hydrostop HighlightsWIDE RANGE OF ACTIVITIES Waterproof socks are ideal choice when there’s a risk of getting your feet wet while hiking, cycling, commuting, hunting, fishing, or working outside.HYDROSTOP™ In serious downpours water can bead up on bare legs and calves and egress into the socks through the top. So we invented 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. Problem solved.EXTREMELY BREATHABLE Particularly noteworthy is the unmatched breathability of the hydrophilic waterproof membrane to release perspiration steam and warm air from inside the sock. This creates a high level of comfort for the wearer, even while performing strenuous and aerobic activities, while also preventing rain, mud, and sand from getting inside the sock.