- Boys’ navy polo shirt - Polo shirt collar, short sleeves - Print and embroidery on chest, XL flag patch on back - Ribbing on collar, striped ribbing on cuffs - Buttons and a press stud to fasten The must-have blue polo shirt confirms its status as a must-have piece in the boys’ wardrobe. IKKS has redesigned it to show a slogan on the chest that combines print and embroidery, and an XL patch with flag inspiration.