It's back and better than ever. Utilizing the new Zoom L.E.A.P. system, the 13 is designed to maximize explosiveness. Its sleek upper design and dynamic Flywire cables are lean and light, yet durable and strong — Just like LeBron. Multi-density layers for lightweight comfort and support. Flywire cables extend from midfoot to wrap around your heel for lockdown. Zoom L.E.A.P. system enhances propulsion and responsiveness. Full-length Phylon for lightweight cushioning and stability. Four independent Zoom Air units on the forefoot for low-profile, flexible, and responsive cushioning. Two Zoom Air units located under the heel and first met head are 13mm thick for response.