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