Inspired by the strength and speed of Rafael Nadal, the Lunar Ballistec will change the way you think about tennis shoes! Stability and durability is now offered in an ultra lightweight, fast package that lets aggressive players have it all. The shoe utilizes the same Adaptive Fit construction that made the Vapor 9 Tour so comfortable and stable. Individual dynamic Flywire cables can be tightened or loosened all the way up the lacing system for a perfect, customizable fit. As the cables tighten around the foot, you'll feel the ultra plush cushioning all around your foot, keeping you secure and comfortable with a glove-like feel. Lunarlon technology in the midsole provides ultra lightweight cushioning and support that's also low to the ground. The data driven outsole and Drag-On cage in the upper give you extra durability where you need it most, and the shoe is backed by a six-month outsole durability guarantee. It's soft, comfortable and lightweight while still providing all the support and stability you need. The Lunar Ballistec is the ultimate all-around performance tennis shoe for the modern player.