Sealskinz Bircham Waterproof All Weather Ankle Length Sock offers a blend of warmth, durability, and comfort. Featuring a three-layer construction for a dry-warm experience, it includes a Merino wool lining for moisture management and insulation. Zonal elastication provides extra support, and the four-way stretch ensures a close, comfortable fit. These socks are perfect for all weather conditions and add a touch of style. Designed for outdoor activities like trekking, camping, and everyday use, they are made with a durable outer layer and a waterproof AQUASEALZ membrane. Easy to care for, simply wash at 40ºC and avoid dry cleaning, ironing, or bleaching. Sealskinz has over twenty years of experience crafting high-performance waterproof accessories.