Under Armour Spine Venom - Men'sUnder Armour Spine Venom running shoe features a UA engineered, synthetic upper with 360° MPZ® construction that provides comfort and breathability. Full-length Micro G® midsole offers a lightweight and responsive ride. Full-length 4D foam sockliner helps eliminate internal slipping. Solid rubber outsole gives full ground contact and traction. Wt. 9.37 oz.