- Men’s cognac polo shirt - Polo shirt collar, short sleeves Cotton modal blend - Ribbing on collar, cuffs and hem - Buttons to fasten IKKS #actforbetter: fabric contains 50% LENZING™ ECOVERO™ viscose modal from sustainably-managed forests This cognac polo shirt has a 50% cotton, 50% modal blend. It gains softness, robustness and suppleness in a cognac colour.