100% cotton (except in the Oxford Grey colourway: 90% cotton and 10% viscose). All colourways are made from 'organic in conversion’ cotton. Straight fit. Jersey fabric. Combed cotton. Round 1x1 ribbed tone-on-tone neckline with ribbed finish. Tone-on-tone taped neck in main material. Twin-needle overstitched finish on the armholes and the bottom of the garment. No brand label on the collar, only a size tag for easy decoration.