The Sealskinz Bircham Waterproof All Weather Ankle Length Sock is designed for ultimate warmth, durability, and comfort. Its three-layer construction provides an exceptional dry-warm experience, perfect for challenging weather conditions. The sock features a Merino wool lining for effective moisture management, insulation, and comfort. Zonal elastication offers enhanced foot stability, while the four-way stretch ensures a close and comfortable fit that adapts to your foot's shape. Flat toe seams prevent discomfort and chafing, making these socks ideal for all weather conditions. They are a perfect gift for anyone seeking cozy, durable footwear. Upgrade your sock collection with these versatile and practical ankle-length socks.