Consider ordering one size bigger than your usual ENDURANCE ACCESSORIES: Designed for the great outdoors, the Bircham Waterproof All Weather Ankle Length Sock excels in activities ranging from high-intensity sports to relaxed outdoor pursuits. Its 100% waterproof and thermoregulating features make it suitable for any adventure. DURABLE: Constructed with a blend of Polycolon, Nylon, and Elastane in the outer layer, and a middle layer featuring AQUASEALZ waterproof membrane, this sock is ideal for all-weather conditions. The premium Merino Wool interior ensures comfort and durability, perfect for both summer and winter activities. THE VERY BEST: Available in a range of colours to match your style, the Bircham sock adapts to various outdoor settings. Its ankle length design complements its breathability, making it a versatile choice for mountain biking, trekking, or trail running. EASY CARE: Maintaining the Bircham sock is straightforward. Simply wash at 40ºC, opt for a low tumble dry or drip dry, and avoid dry cleaning, ironing, or bleaching. This care routine ensures your sock remains in excellent condition. OUR BRAND: SEALSKINZ has over twenty years of experience crafting the finest waterproof accessories. Trusted by athletes and outdoor enthusiasts worldwide, our products, including the Bircham sock, are designed to offer unparalleled comfort and performance in the great outdoors.