Nike’s Air Structure Triax design from nearly two decades ago has seen great success in the form of retros and a new basketball adaptation. This latest release gets back to the simple ABCs of design success; literally. The Nike Air Structure Triax 91 above is done in a mix of black, brown and purple. The black leather on the toe and heel features laser etched capital letters, adding a nice depth to the shoe while avoiding a schoolyard look. These are available at select Nike Sportswear retailers now including Standard and eBay.