Plain colourways : 100% cotton. Ocean Blue Heather and French Navy Heather: 80% cotton/20% polyester. Grey Heather: 70% cotton/30% viscose. All colourways are made from organic cotton. OCS (Organic Content Standard) and OCS Blended certificates are issued by Ecocert Greenlife. Ribbed crew neckline. Matching taped neck. Twin needle finish at cuffs and hem. No brand label at neck, only size tag for easy relabelling.