100% Combed ringspun cotton. RS Sport Grey: 90% Ringspun Cotton, 10% PolyesterWeightWhite 180gsm, Colours 185gsmSizeS 34/36" M 38/40" L 42/44" XL 46/48" 2XL 50/52" 3XL* 54/56" Seamless set-in rib knit 7/8” collar. Taped neck and shoulders. Euro fit shoulders and armholes. Twin needle sleeve and bottom hems. Quarter-turned to eliminate centre crease. Tearaway label. WRAP certified. SEDEX certified. Oeko-Tex certified. Reach certified. Fair Labour certified. Washing Instructions Machine wash warm. Inside out, with like colours. Only non-chlorine bleach. Tumble dry medium. Do not iron if decorated. Do not dry clean