Solids: 5.75-ounce, 65% cotton / 35% polyester stretch plaited jersey knit; Heather gray: 59% cotton / 41% polyester stretch plaited jersey knit; Other Heathers: 60% polyester / 40% cotton stretch plaited jersey knit Built with Force® technology to wick sweat and dry fast FastDry® technology keeps you cool for all day comfort Stain Breaker® technology releases stains UPF 25+ Smooth flatlock seams Raglan sleeves increase range of motion Ventilated side panels Drop-tail hem for added coverage Left-chest pocket with pen stall Tagless neck label Imported