Plain colourways: 100% cotton;Oxford Grey colourway: 90% cotton/10% viscose;Wine Heather. Green Marble Heather & Claudy Blue Heather colourways: 80% cotton/20 % polyester;All colourways are made from organic cotton;OCS (Organic Content Standard) and OCS Blended certificates are issued by Ecocert Greenlife;Tubular cut;Straight fit;Round ribbed neckline with double top overstitching;Matching taped neck;Twin needle finish at cuffs and hem;No brand label at neck. only size tag for customization;