Plain colourways: 100% cotton;Ash Heather colourway: 98% cotton / 2% viscose and Oxford Grey colourway: 90% cotton / 10% viscose;All colourways are made from in conversion organic cotton;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;