Flexible Forefoot:Flex Grooves On The Forefoot For Free Movement For All Lifting Exercises. Fuelfoam Imeva:Our Soft Eva Compound That Balances First Feel Cushioning With Responsiveness. Memorytech Sockliner:7Mm Heel Thickness Provides Cushioned First Feel Underfoot. Memorytech Sockliner:PU Insole Helps Absorb Force On Impact For A Smooth Ride. Rubber Hits:Rubber In Heel Provides Additional Traction.