The  Women`s GEL-RESOLUTION® X Tennis Shoes create advanced stability and cushioning for players who like to control the court from the baseline. DYNALACING™ technology has been strategically designed to hold when extra support is needed. This allows you to experience a locked-in feel when making quick transitions. A two-piece midsole design also helps improve stability when your foot lands on the court. The locked-in feel is ideal when making quick transitions and DYNAWALL™ technology in the midsole now extends into the heel for added stability during lateral movements. It's a functional feature effective when you're running covering both sides of the baseline. The full-length outsole and separated heel help produce a more stable landing for quicker recovery in between shots. The GEL-RESOLUTION® X improves on the Gel-Resolution 9 with improved support and stability. But most importantly the shoe delivers all-day comfort.