Air max is a line of Nike shoes first released in 1987,it was based on the improvement of air cushioning technology first intruduced by Nike,Inc.The air max shoes use a large air cushioning unit at the heel which is visible from the side of the midsole in most models.The air cushioning of air max shoes belongs to Nike air cushioning series,which extremely use the air and is the best protect system when the shoes encouter the attack.Because the foot repeatedly attact the groud which will cause great damage for body and sports peformance,while nike air max can share the stong impact loaded by athletes,protecting them all considely.