Stanfield's 2 layer offers a soft inner layer of blended cotton and polyester next to your skin. Our outer layer is a blend of cotton and polyester which helps maintain warmth and durability.  STYLE:U9547 Material:50% Cotton, 50% Polyester Features:Set in sleeves for free and easy movement Flatlock seams that won't bind or chafe Snug fitting 1x1 rib knit cuffs reinforced with spandex Colour:Charcoal mix Size RangeLS-XL Stanfield's Stanfield's Essentials Men's 2 Layer Thermal Long Sleeve Shirt - U9547