ENDURANCE ACCESSORIES: The SEALSKINZ Waterproof All Weather Mid Length Sock with Hydrostop is a versatile choice for a wide range of outdoor activities. Crafted to provide unparalleled protection against the elements, these socks are ideal for hiking, backpacking, trekking, and mountain biking. Their Hydrostop technology offers an additional barrier against water, ensuring your feet stay dry. DURABLE: Constructed with a three-layer AQUASEALZ composition, these socks feature a durable nylon exterior, a waterproof hydrophilic membrane, and a premium merino wool interior. Suitable for all weather conditions, they are designed to keep your feet comfortable, dry, and warm, whether you're exploring in summer or winter. 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 THE VERY BEST: Available in various colours to match your outdoor gear, the SEALSKINZ Waterproof All Weather Mid Length Sock with Hydrostop ensures you can find the perfect fit for your adventures. These socks are not only functional but also stylish, making them a great addition to any outdoor enthusiast's wardrobe. 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.