- Boys’ black shirt - Shirt collar, short sleeves - Exclusive IKKS exotic leaf print - Buttons and a press stud down front to fasten - IKKS# #actforbetter: fabric contains 100% LENZING™ ECOVERO™ viscose from sustainably managed forests Palm trees, big cats, XL leaves and a tachist motif for the exotic leaf print on this boys’ shirt, made from 100% Ecovero® viscose from sustainably managed forests. Thumbs up to short sleeves coming back.