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 - Force technology - FastDry technology - 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 - Replaces 104617 -