Speed is Russell Westbrooks not-so-secret weapon. He out-hustles the competition, building momentum and muscling his way onto the highlight reel. Cue the Jordan Why Not? Zer0.4, the first to feature double-stacked Zoom in the forefoot. It's an extra-responsive cushioning system that's designed to help him transform speed into force and focus his attack. This PF version uses an extra-durable outsole that's ideal for outdoor courts.

• Double-Stacked Attack 2 stacked Air Zoom units in the forefoot deliver the ultimate responsiveness and cushioning. They help optimize the energy return you get out of every step.
• Locked-In Lacing The laces combine with strips of webbing in the heel and forefoot. When you tighten the laces, the material engages to help you stay harnessed over the cushioning.
• Fast-Action Traction Outdoors The durable rubber outsole has a new, data-informed tread pattern. It helps keep you low to the ground and ready to react to the game's changing tempo. The rubber is designed to go hard on outdoor courts.