- Girls’ navy T-shirt - Round neck, long elasticated sleeves - Exclusive IKKS star and heart print - Chest seams with topstitching, ruffles on armholes - Invisible zip on back to fasten A new exclusive IKKS print mixes stars and hearts on a navy background, a chest seam has silver topstitching, and there are ruffles around the armholes: all the details on this T-shirt have been carefully thought out. Elasticated sleeves and the invisible zip down the back make it practical.