Plush landings transform into explosive toe-offs in a running shoe that takes you from training to racing with speed, agility and more efficient strides.Perfect for: Serious runners wanting explosive speed and responsive cushioning for everything from training runs to distance races.Upper: One-piece engineered mesh moves naturally with your foot. Breathable knit provides essential ventilation when your intensity heats up.Sole: Px Foam™ cushioning absorbs impact and provides explosive energy to promote more efficient strides. Contoured chassis reduces weight without sacrificing comfort. Targeted rubber in the tread provides reliable grip with minimized bulk. Energy return: transforms every heel strike into responsive, explosive forward movement Speed: transforms impact absorption into propulsive energy with ultralightweight cushioning Cushioning: absorbs impact and distributes weight for consistent, buoyant comfort under each step Lace-up style Removable, cushioned insole allows for custom orthotics Px Foam cushioning transforms feather-soft landings into explosive toe offs to promote more efficient strides Synthetic and textile upper and lining/rubber and synthetic sole Imported