Nike Lunar Vapor 8 Tour Tennis Shoes for Men - UPPER: Flywire construction provides support in an extremely minimal lightweight package. Arch-fit for exceptional support. Toe and medial drag protection.MIDSOLE: Full-length Lunarlon technology for a responsive, low to the ground, softer and more flexible ride.OUTSOLE: Full-length XDR in a traditional herringbone pattern for extreme durability and traction on all surfaces. Carbon fiber shank for lightweight support.The lightest and fastest shoe on the tour. The ultimate in Nike technology to provide elite players the advantage of speed.