Under Armour Mens Spine Vice Running Shoe Black/Black/Flash Light mesh UA Spine chassis technology creates an incredibly light, flexible feel without sacrificing support Micro G foam encapsulated within the chassis delivers unrivaled rebound and energy return Breathable mesh upper with an underlying MPZ structure for protection and lightweight support TPU heel counter for greater stability without being too rigid for comfort Full length molded 4D Foam sockliner and collar conform to your foot's exact shape, eliminating slippage