The COS menswear team has re-imagined the classic polo shirt this season, incorporating a utility-inspired zip fastening. Attention to detail has been paid to the collar and contrasting zip underside, and each sleeve cuff has been finished with a ribbed trim. Regular fit Short zip fastening Johnny collar and ribbed cuffs Organic cotton is grown from non-genetically modified seeds without chemical fertilizers or pesticides Shell: 100% Organic cotton. Neck lining: 100% Cotton. Excludes trims / Machine wash Back length of size M is 68.9cm / Model wears a size M.