THE MOST DURABLE VAPOR TO DATE. The NikeCourt Air Zoom Vapor Cage 4 is innovated to withstand your toughest matchesa "thanks to an updated design that puts flexible, durable materials exactly where they're needed the most. A unique lacing system keeps your laces hidden for extra durability while sliding. Exceptionally Durable:The data-informed design places flexible, durable materials exactly where they're needed the most. The outsole material wraps over the midsole on the medial side for durability. Responsive Cushioning:A Zoom Air unit beneath your forefoot creates a springy sensation with every step. Supportive Feel:Unique lacing wraps your foot for support while you move. The medial eyestays are covered for added durability while sliding. More Benefits: Stiff frame on the lateral side creates a stable feel during side-to-side movements. 1\/2-length sleeve gives you a sock-like fit. Designed for use on hard court surfaces. Product Details:Removable insole. Style: CD0424; Color: White/Grey Fog/Black; Size: 6; Gender: Male; Age Group: Adult | NikeCourt Air Zoom Vapor Cage 4 Mena (TM)s Hard Court Tennis Shoes in White, Size: 6 | CD0424-107