The Nike Air Zoom Vapor X Women’s Tennis Shoe has an updated Dynamic Fit system with a full-length foot frame to provide your foot with ultimate control. Its new generative outsole combined with a Zoom Air unit provides a lightweight, responsive feel on the court and 7.5mm wear shelf is engineered with a thicker tread in high-wear zones for added durability. Adaptive Fit construction wraps from the laces to the bottom of the arch for support and comfort. Rubber is removed in low-wear areas to keep weight at a minimum while delivering an outsole that wears evenly. To achieve premier performance, give yourself a couple of extra hours to break these shoes in.