Nike Air Zoom Vapor X Glove Men's Tennis Shoes Black/University Gold : The Nike Zoom Vapor X Glove is specifically designed for clay courts and features a unique zippered woven upper shroud to prevent clay from getting inside the shoe. This shoe also features a Dynamic Fit system made from a full-length TPU foot frame and offers more security during quick, lateral movements on the court. Zoom Air units provide more response and lightweight comfort underfoot. Upper: Textile material in the upper with sublimated graphic offers lightweight breathability and style. A breathable, lightweight shroud helps keep feet free from debris. Padded tongue and heel collar enhance comfort. Lace-up front offers an adjustable fit. TPU footframe wraps from the lateral midfoot to the heel for stability during quick turns. Footframe material wraps the toe to enhance durability. Midsole: Dynamic Fit system wraps the midfoot and arch for a glove-like fit. Phylon midsole delivers lightweight yet firm cushioning and optimal responsiveness. Nike Zoom Air unit in the heel offers low-profile responsive cushioning. TPU midfoot shank delivers lateral support and stability. Outsole:Features a clay-specific outsole for excellent grip. XDR compound on the heel and forefoot provides durable traction.