For players who want to control the game from the baseline, the GEL-RESOLUTIONTM X tennis shoe offers superior comfort. DYNALACINGTM technology has been carefully crafted to withstand situations in which further assistance is required. When you're making fast changes, this enables you to feel locked in. Additionally, the two-piece midsole design enhances stability and comfort as your foot touches the court. For increased stability during lateral motions, the midsole's DYNAWALLTM technology now extends into the heel. When you're running and covering both sides of the baseline, this useful feature works well.