5.75-ounce, Solids: 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 Carhartt Force with FastDry technology wicks sweat to keep you cool and comfortable UPF 25+ Smooth flatlock seams Raglan back sleeves increase range of motion for less restriction