Indera - Mens Long Sleeve Thermal Top, Natural, Ribbed Crewneck And Cuff Wrists, Waffle Weave, Full Cut For Comfortable Fit, Shrinkage Controlled, Cold Weather, Medium Activity, Chest Size Small = 34-36 Medium = 38-40 Large = 42-44 XLarge = 46-48, 65% Cotton 35% Polyester, True to Size, Machine Wash, Tumble Dry.