Nike Air Tech Challenge 2 Tart Stone Blue updates the 1990s tennis silhouette with bold color blocking and visible Max Air cushioning. Built for retro style and all-day comfort, it pairs leather construction with supportive foam and a grippy rubber outsole. Key attributes: Sail | Tart | Stone blue | Natural leather | Synthetic leather | Visible Max Air cushioning | Plush foam collar for comfort | Responsive foam midsole | Traditional lacing system | Rubber outsole for traction | 1990s-inspired tennis silhouette | Bold color blocking | Graphic detailing on upper | Composition care: Natural leather (upper) | Synthetic leather (upper overlays) | Textile lining | Foam collar | Foam midsole | Rubber outsole | Visible Max Air unit