Pack includes 3 crew-neck tees. Rib-knit crew-neck. Short sleeves. Go-Dry moisture-wicking technology helps keep you dry and comfortable. Pieced trim inside neck for added durability. Tag-free for added comfort. Basic Multi Pack only: 100% cotton (solid colors); 60% cotton, 40% polyester (heather gray color only). Slightly fitted through body. Tee hits below waist. Size XS = 36-37 chest. Size S = 38-39 chest. Size M = 40-42 chest. Size L = 44-46 chest. Size XL = 48-50 chest. Machine wash. cotton 100% . Best Holiday gift for Men , perfect T Shirts for Christmas!