50% cotton 50% polyester. Oxford is 49% cotton. 51% polyester. virtually pill-free with a high-stitch density for a smooth printing canvas. double-needle coverseaming on neck armholes and waistband. single-ply hood. concealed seam on cuffs. seamless body with set-in sleeves. split pouch pockets. grommets and matching drawcord. aluminum zipper.