100% cotton. This polo shirt is made from 100% organic combed cotton. Straight fit. Ribbed neck and cuffs. Placket with 2 matching buttons. Tape at inner neck and side slits. Twin needle stitching at hem. No brand label at neck, size tab only for ease of rebranding. Certified STANDARD 100 by OEKO-TEX® N° CQ 1007/7, IFTH.