Carhartts bestselling, no-quit, original work shirt. A classic for 25 years. Loose fit - please size down. Rib knit crewneck. Tagless neck label. Left chest pocket. Side-seamed construction minimizes twisting. Carhartt label sewn on left chest pocket . 100% Cotton jersey knit. 90% Cotton/10% Polyester (Heather Grey). 60% Cotton/40% Polyester (Carbon Heather, Dark Cobalt Blue Heather).