100% preshrunk cotton; Ash Grey is 99/1; Sport Grey is 90/10; double-needle stitching throughout; seamless collar; taped shoulder-to-shoulder; Antique (Cherry Red, Irish Green, Royal) are 90/10; Dark Heather, Heather (Cardinal, Indigo, Navy, Sapphire) are 50/50; Safety (Green, Pink and Orange) are 50/50;