Get a charged up and cushioned trainer for your toughest workouts with the Asics Gel-Craze TR 4. This shoe offers a lightweight and breathable mesh upper a rearfoot gel technology cushioning system a high abrasion rubber on the outsole and deep flex grooves alighned within to recognize your foot strike. Mesh upper provides breathability. Rearfoot gel technology cushioning system for protection. FluidRide technology for a combination of bounce back and cushioning properties. High abrasion rubber outsole. FluidAxis deep flex grooves.