Content - 70% Merino Wool, 25% Nylon, 5% Spandex * Double Cuff, Full Cushion, and Impact Support Zones (which are strategically reinforced zones) add superior comfort and protection * ProtectGuard® Anti-odour socks inhibit the growth of odour causing bacteria * Preshrunk Wool : Merino Wool is the finest quality of easy care wool for exceptional warmth and softness. Wool features inherent qualities such as wrinkle resistance, colorfastness, shape recovery (resiliency), and is very breathable. * Ankle & Arch Support- Strategically placed elastic to create grip for superior fit, comfort and performance