The ultimate in Nike technology to provide elite players the lightest and fastest shoe on the tour. This shoe features Flywire technology in the upper for ultra lightweight support and comfort. LunarLite foam in the forefoot is also ultra lightweight and offers springy cushioning for a softer, more flexible ride. Herringbone pattern provides traction on all court surfaces. Roger Federer's weapon of choice!ColorsWhiteBlackStealth TypeLow Tennis Weightapprox. 12.8 oz. UpperNew Flywire technology provides support in an extremely minimal and lightweight package. Arch fit for exceptional support. Toe and medial drag protection. MidsoleFull length Lunarlon technology for a responsive, low to the ground, softer and more flexible ride. OutsoleFull length XDR in a traditional herringbone pattern for extreme durability and traction on all surfaces. Carbon fiber shank for lightweight support. NIKE products are available for ordering. Please call 1 800 336 8180 718 646 5668. 11 7 EST