Get to showing the logical relation between sets just as well as John Venn himself thanks to the Nike Air Max 90 NRG "Venn Diagram," in "Light Smoke Grey/Obsidian" This unique sneaker features a cavnas upper and mudguard with suede overlays. Dots in various grey hues add something special, translucent lace eyelets, and a Venn Diagram of black, grey, and white on the tongue.