Plain colourways : 100% cotton. Ash Heather colourway : 98% cotton/2% viscose and Oxford Grey colourway : 90% cotton / 10% viscose. Ribbed crew neckline with elastane. Matching taped neck. Twin needle finishing at cuffs and hem. Certified STANDARD 100 by OEKO-TEX®N° CQ1007/7, IFTH.