- Men's chocolate shirt - Monaco collar, long buttoned sleeves - EASY-REGULAR shape, French fabric with exclusive IKKS check pattern - Button closure, IKKS button left cuff - IKKS #actforbetter: material contains 76% LENZING™ ECOVERO™ viscose from sustainably managed forests Revisit your classics with this Homme shirt. Punctuated by a check pattern, it tames chocolate with touches of blue, black and ecru.