Nike Mens' Air Zoom Vapor IV: The essence of speed. The Nike Air Zoom Vapor IV for Men's Tennis is the ultimate quick-court-footwork shoe. With a Counter Speed Fit upper made of lightweight synthetic material for fast movement in all directions, plus a Momentum Control System in the midsole for enhanced stability, the Zoom Vapor IV will have you making mincemeat of the competition in no time flat. Features: The upper features forefoot flexibility and regionalized durability in the toe tip and medial forefoot for a reinforced, supportive wear A full-length Phylon midsole with Zoom Air units in the heel and forefoot provides lightweight cushioning and response Regionalized wear zones are reinforced with new XDR rubber compound, and a full-length herringbone pattern delivers traction on a variety of court surfaces Golfsmith is the world's largest retailer of golf equipment. Minimize