Plain colourways: 100% cotton. Wine Heather, Ocean Blue Heather and French Navy Heather colourway: 80% cotton/20% polyester. Grey Heather: 70% cotton/30% viscose. All colourways are made from organic cotton. Slim fit. 1×1 ribbed neck and cuffs. Placket with 4 matching buttons. Twill tape on inner neck and side slits. No brand label at neck, only size tag for easy relabelling. Certified STANDARD 100 by OEKO-TEX®N° CQ1007/7, IFTH.