100% cotton * Graphite Heather, Heather Colors are 50/50 cotton/polyester * Sport Grey are 90/10 cotton/polyester * Ash Grey is 99/1 cotton/polyester * Classic width, rib collar * Taped neck and shoulders for comfort and durability * Tear away label *Proud member of the U.S. Cotton Trust Protocol * Made with OEKO-TEX certified low-impact dyes