Carhartt's relaxed fit heavyweight 1/2-zip thermal shirt provides the utmost comfort and style. The textured doubleknit is made of 58% cotton, 39% polyester, and 3% elastane for a stretchy, breathable fit. The mock neck has a half-length zipper for easy on and off, and the rib-knit cuffs keep the sleeves in place. The rolled-forward shoulder provides extra coverage, and the side-seam construction minimizes twisting. The handwarmer pocket is perfect for storing your belongings, and the Carhartt patch adds a touch of style. The heat transfer back neck label ensures that you stay comfortable all day long.