Waterproof - three layer construction for warmth, durability and waterproofing. Comfort - Merino wool lining for moisture control, insulation and warmth. The Sealskinz Waterproof Cold Weather Mid Sock is 100% waterproof meaning your feet will be warm and dry all day. This sock will protect you from blisters and all sorts of issues we have with feet. ENDURANCE ACCESSORIES: The Starston sock is crafted for cold weather activities such as mountaineering and climbing. Its waterproof and moisture-wicking features make it suitable for challenging terrains and conditions. A premier choice for hiking enthusiasts seeking reliable performance. DURABLE: Comprised of a merino wool interior for insulation and a nylon blend exterior for moisture management, the Starston is designed for winter wear. Its materials work in harmony to keep feet dry and comfortable in cold environments. THE VERY BEST: Available in a range of colours to suit personal preferences. Each sock is carefully constructed to provide a snug fit and exceptional comfort, ensuring suitability for a variety of outdoor pursuits. EASY CARE: Maintaining the Starston sock is straightforward - wash at 40ºC, tumble dry on a low setting or drip dry. Avoid dry cleaning, ironing, or bleaching to preserve its waterproof qualities and overall integrity. OUR BRAND: SEALSKINZ has over twenty years of experience in creating endurance accessories trusted by athletes and adventurers alike. Our products, including the Starston sock, undergo rigorous testing to meet the highest standards of performance and comfort.