Some running shoes are lightweight. Some are supportive. The two don't have to be mutually exclusive. That’s what makes the Under Armour Spine RPM Storm different than any other shoe out there. Spine was created when UA cored out the chassis to make the shoe lighter and more flexible, without losing any support or responsiveness. The result is an innovative running shoe that’s built to start strong and finish stronger. Storm DWR finish provides breathable protection during colder, wetter months. External TPU heel counter locks down the foot. Full-length Micro G™ internal midsole offers an ultra-responsive, lightweight ride. Spine chassis delivers the ultimate in lightweight structure. Full-length, molded 4D Foam™ sockliner and collar lining are built to mold/conform to your foot. Carbon rubber covers the heel impact zone. Solid rubber outsole gives full ground contact and traction without adding weight. .Wt. 8.2 oz.
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