AND1 Boys' Rocket 4.0 Tennis Shoes Synthetic The ROCKET 4.0 is a low profile, multi-faceted basketball shoe with a stable and smooth ride on any surface. Combination of leather and synthetic leather with strategically placed overlays creates a form fitting, lightweight product. Mesh tongue promotes air flow and maximzes breathability. Fixed internal EVA footbed ensures cushion and a stable ride. Abrasion-resistent herringbone provides great traction.