A tough junior shoe that works for many different sports, such as tennis. The sole is a so-called "Non Marking" which means that it does not leave black marks, either indoors or outdoors. Jet is a very lightweight and flexible shoe that works on all surfaces. The top is very durable because it is reinforced with kevlar fibers that resist wear in a very good way. The cushioning consists of Babolat's patented Compressor System which provides protection against bumps through the heel and forefoot.