100% organic combed ringspun cotton OCS100 certified by Ecocert Greenlife (except Sport Grey: 90% organic combed ringspun cotton/10% viscose.OCS Blended certified by Ecocert Greenlife). Single jersey. Comfortable body length construction. Side seams. Thin collar rib. The neck and shoulder seams are reinforced with a soft binding. Extrasoft and smooth handfeel. “B&C No Label” system for perfect rebranding.