• New PWRRUN foam cushioning is softer and lighter than ever before
• Newly updated geometry gives you more cushion underfoot and a smooth, rocker feel
• Fit details help you lock in the perfect feel without added pressure
• Durable outsole rubber
• APMA Certified - The American Podiatric Medical Association, APMA Seal of Approval/Acceptance Program recognizes products that have been found beneficial to foot health and of significant value when used in a consistently applied program of daily foot care and regular professional treatment.