The new Guide 13 is for the runner who is searching for a comfortable ,reliable, stability shoe for every run. The new Guide 13 offers a balance of perfect cushioning and solid stability with an easy transition from impact to toe off not usually found in other stability trainers. The new PWRRUN midsole cushioning provides a perfect blend of softness and responsiveness which is often not found in one of the best stability trainers in running. The new medial TPU guidance frame guides your feet through their natural forward movement while running or walking for a supportive and smooth ride. The FORMFIT upper surrounds the arch and top of your foot with an almost custom fit and hugging feel that easily accommodates a wide range of foot shapes. Successor to the Guide ISO 2.