The Under Armour Micro G Spine Evo is inspired by one of the most dynamic motion systems ever created – the UA Spine. Giving you responsive, flexible cushioning, this cushioned running shoe supports every move you make. The lightweight mesh upper with seamless overlays enhances breathability, while the Micro G™ internal foam midsole keeps you light on your feet. The Spine Chassis provides the ultimate lightweight structure. Solid rubber covers the outsole for long-lasting durability and supreme traction. Wt. 8.3 oz.