leather-and-mesh Boost: Full length boost foam midsole provides great cushioning and unmatched energy return. Spring Plate: Delivers additional power for explosive movements while stabilizing and guiding the foot during play. Anti-Slip Liner: Slip resistant to keep foot in place. Adiwear Rubber: High abrasion resistant rubber that protects shoe from "toe drag." Top Grip Rubber: Light and soft rubber that provides maximum grip.