- Men’s bluish green 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 Bluish green, the new green shade, makes a polo shirt in a cotton modal knit in an even blend look great.