Under Armour Spine Gameday Trainer - Men'sThe Under Armour Spine Gameday Trainer training shoe features a 360° MPZ® upper design that provides seamless comfort and lightweight breathability. Full-length Micro G™ midsole offers an ultra-lightweight and responsive ride. The Spine chassis delivers the ultimate in lightweight structure. Full-length, built in 4D Foam® footbed conforms to your foot’s exact shape, eliminating internal slipping for a lightweight, locked-in fit. Solid rubber in high wear areas adds full ground contact and traction without adding weight. Wt. 10.5 oz.