The Babolat Jet Mach I is a premium choice for aggressive movers who prioritize responsive comfort in their game. The Matryx SL technology in the one-piece upper was developed by experts in high performance technical fabrics, and is designed to meet the specific needs of tennis athletes by using Kevlar and Polyamide fibers woven into targeted areas for ultimate support. The Ortholite insole remembers the shape of the players foot to deliver the same comfortable fit every time. Finally, the Michelin sole serves to stabalize the foot during lateral movements, resists wearing down over time, and is suitable for any court surface.