Under Armour Men's UA Micro G&iquest; Assert V 100% Leather/Mesh Imported Synthetic sole 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.