Aetrex Train Orthotics are designed for gym goers wanting comfort and injury prevention during workouts and training sessions. This orthotic features our signature Aetrex Arch Support to help biomechanically align your body & help prevent common foot pain such as Plantar Fasciitis, Arch Pain and Metatarsalgia.Details - Top Cover Material - Ultra soft mesh polyester fabric to maximize air flow and reduce moistureCenter Cushioning Material - FitGuard™ to cushion every stride with slow recovery memory foamPerformance Base - Aerocell™ polyurethane for high energy returnInsole Thickness -.2165"Recommended for - Gym Workouts, Training SessionsBest for - Gym sneakers, Training shoes, Athletic sneakers, Tennis shoes