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 V-neck with elastane. Matching taped neck. Twin needle finishing at cuffs and hem. Certified STANDARD 100 by OEKO-TEX®N° CQ1007/7, IFTH.