LeBron's high-performance engine needs a light yet strong frame to help harness and direct his force. The LeBron 18 Low brings back the 17's cushioning system to provide an optimal balance of comfort, impact cushioning and responsiveness. The upper combines a mix of lightweight materials, no-sew overlays and a structured heel to provide full-foot containment without sacrificing ankle mobility. Impact Cushioning and Responsiveness A Max Air unit under the heel provides impact cushioning for big, strong players like LeBron. It's paired with full-length Nike React technology for smooth transitions and responsiveness. Lightweight, Durable Materials Woven material in the upper is lightweight and durable. Overlays provide structure and support. Heel Lock-In The external moulded heel clip provides lightweight support to help lock in the back of your foot.