Tough, warm, and fully waterproof, the Worstead is the original knee-length sock trusted by military professionals and built to take on the harshest conditions. Whether you're skiing, hiking through snow, or braving wet winter weather, this sock is made to keep you dry, warm, and moving. Handcrafted in the Sealskinz factory in Norfolk, the Worstead is made to last. It features an Aquasealz waterproof membrane, which cleverly lets heat and moisture escape while blocking out rain, snow, and slush. So your feet stay dry from both the inside and out. Inside, soft terry-loop knitting adds extra insulation and comfort, giving you reliable thermal protection when temperatures drop. From mountain trails to winter commutes, these socks are designed for serious cold weather performance. If you need a sock that can go the distance in extreme conditions, the Worstead delivers. Waterproof, breathable, and built for the cold, it’s the sock you’ll reach for when things get rough. The Worstead Waterproof Cold Weather Knee Length Sock by SEALSKINZ is an essential accessory for those engaging in skiing, winter hiking, and other cold weather activities. Designed to withstand the toughest environments, this sock offers unmatched durability and protection against the elements. Crafted from a blend of premium materials including merino wool and the innovative AQUASEALZ waterproof membrane, the Worstead sock is ideal for winter conditions. Its construction ensures warmth, breathability, and waterproofness, making it suitable for all your cold-weather adventures. Available in versatile black, olive & navy colourways, the Worstead sock is designed to complement any winter gear. Its knee-length style not only provides additional protection but also offers a snug fit, ensuring maximum comfort during any activity. Maintaining the quality of your Worstead sock is hassle-free. Wash at 40ºC, opt for a low tumble dry or drip dry, and avoid dry cleaning, ironing, or bleaching to ensure its longevity and performance. SEALSKINZ is renowned for crafting the finest waterproof accessories, with over twenty years of experience. The Worstead sock is a testament to our commitent to quality, designed and hand-tested to meet the highest standards of durability and waterproofness. Handcrafted in Norfolk, this thermal and waterproof sock is built to tackle the harshest environments while keeping you dry and cosy on your feet. The trusty Aquasealz membrane blocks out water while letting heat and moisture escape, so your feet stay fresh no matter how tough the conditions. The innovative polycolon exterior offers 4-way stretch for a snug fit, while the merino wool interior provides softness, sweat-wicking, and warmth with terry-loop knitting for extra comfort. Its seamless construction and elastic ankle support ensure a precise, chafe-free fit, and every pair undergoes rigorous testing for waterproofing and durability. 100% waterproof with breathable Aquasealz membrane. Premium merino wool interior for warmth and sweat-wicking comfort. Durable 4-way stretch Polycolon exterior for a secure fit. Seamless construction handcrafted in Norfolk for ultimate performance. Outer Layer - 90% Nylon, 10% Elastane. Middle Layer - Aquasealz waterproof membrane. Inner Layer - 35% Merino Wool, 35% Acrylic, 23% Polyester, 3.5% Nylon, 3.5% Elastane.