- Boy's blue T-shirt - Double round neck, long sleeves - Varnished buildings visual on back - IKKS gum logo on chest, embossed IKKS logo on back - IKKS #actforbetter: material contains 100% organically grown cotton First, there's the double collar. Then there are the logos, gummed on the chest and embossed on the back. Then there's the buildings visual on a navy frame background on the back. A blue T-shirt in organic cotton for urban boys.