The men’s nike vapor has a new heel counter for better break-in and comfort. It is made of NIKESKIN upper, a super lightweight, ultra thin material that conforms to the natural curves of the foot. The sculptured arch provides stability and added shoe comfort. The outsole of the nike vapor consists of a NIKEFRAME contoured glass filled nylon structural plate that creates stability and enhances immediate take off as the platform springs immediately back to its original characteristics. The Mercurial nike vapor has a Speedtract plate designed for speed and NIKESNAP for easy stud removal. These shoes are for soft ground only.