Nike Dual Fusion TR 5 PremiumGet out and get moving in the Nike Dual Fusion TR 5. This lightweight training sneaker has Dual Fusion technology that includes a softer underfoot cushioning system surrounded by a firmer density system. Plus, they were also constructed with a breathable mesh upper, padded collar, phylon midsole, and a rubber outsole with Omni-Trax for superb traction on varied surfaces.