Rubber sole Max Air provides impact cushioning under the heel. A molded TPU heel counter helps stabilize the foot while you generate force on the court. A full-length Zoom Air unit is nestled within the Max Air under the heel and extends into the forefoot. The high-volume unit helps provide energy return that's fine-tuned for speed. KnitPosite 2.0 is lightweight and breathable, with knit-in stretch for a secure fit. Laces feed through tunnels engineered into the knit, helping anchor you down without extra weight. Air units embedded in the tongue provide padding over the top of your foot. Rubber outsole with multidirectional traction pattern When LeBron accelerates down the court, he produces tremendous force. The LeBron 18 is designed to harness his abilities while helping with the stress he puts on his body. Combined cushioning underfoot allows him to use his power for unstoppable bursts of speed.