NFL Pittsburgh Steelers Color Block Socks. 58% Cotton, 32% Acrylic, 10% Spandex. Elastic: Nylon, Latex Rubber. These are new store shelf pulls. Delivery dates are an estimate and not a guarantee and may be affected by inclement weather, holiday volumes, or other factors. Returns are accepted. Buyer must contact seller prior to returning an item. Buyer to pay return shipping costs. Item must be returned in original condition.