Under Armour Men`s UA Micro G Assert V Running Shoes, 8.5, BLACK/WHITE mesh Formfitting, Breathable Mesh Upper - Delivers super-lightweight performance. Durable Leather Overlays - For stability and to lock in your midfoot. Full-Length 4D Foam Sockliner - Conforms to your foot for a customised fit. Micro G Foam midsole - Turns cushioned landings into explosive takeoffs. Solid rubber outsole - Strategically placed on high wear areas for full ground contact and traction, with less weight.