legendary look & maximum comfort. the nike air max st boys' shoe blends the iconic air max design with a combination upper for durability & classic style. responsive midsole cushioning delivers superior impact protection.. benefits. combination leather & textile upper with overlays for comfort & durability. full-length polyurethane midsole for lightweight cushioning. visible air-sole unit for cushioning & maximum impact protection. rubber outsole for traction & durability. nike air max origins. nike's revolutionary air-sole unit made its way into nike footwear in the late '70s. in 1987, the nike air max 1 debuted with visible air in its heel, allowing fans more than just the feel of air-sole comfort—suddenly they could see it. since then, next-generation nike air max shoes have become a hit with athletes & collectors by offering striking colour combinations & reliable, lightweight cushioning..