adidas - a Ultimate Power (Running White/Metallic Silver/Silver) - Men's: It's a3(R) structure outsole makes this a stable, well-cushioned platform for power training. TPU 3-stripes element wraps around the heel for an extra level of support. ; Upper: ; Synthetic leather upper for light weight and durability. ; Inlay: ; EVA insole for comfort. ; Midsole: ; adiPRENE(R) insert for forefoot propulsion and efficiency. Structure midsole for optimal stability and platform. ; Outsole: ; adiWEAR(R) outsole for best durability in high-wear areas. Aggressive outsole pattern for indoor/outdoor use. Flexible rubber cupsole for grip and durability.