Climate-controlled COOLMAX® yarn provides drier and cooler feet, as the moisture is reduced Outside. COOLMAX® Anglers' functional socks have been specially designed for wearing in neoprene, nylon / PVC knee boots, wading boots and waders. Comfort collar extra wide Extra soft padding with Achilles tendon protection Ribbed insert for perfect fit Durable and easy to maintain Material: 60.5% cotton, 7% nylon, 9% elastane, 23.5% polyester