Specifically designed for running (also for marathons and triathlons). The MySole Running Insoles have been used with great success for years by many professional atheltes and runners. The highly popular MySole Running Insoles offer optimal shock absorption and support causing unstable ankles and knees, painful/overused/tired feet to belong to the past. The MySole Running Insoles are also perfect when suffering from flat feet. Available in the sizes 36 - 50 (sold per pair).