Ausangate Alpacor Mid-Calf Hiking Socks For Men 80% Alpacor/ 23% Nylon/ 2% Spandex Imported Soft cloud-like terry from heel to toe Cushioned terry lining from heel to toe for added comfort. Ankle and instep compression bands for stability. Mesh panels for added breathability. Flat toe seam. Machine wash and dry alpaca fiber socks.