Get Comfortable: Signature Altra Balanced Cushioning and FootShape toe boxes allow your toes to spread and encourages proper, low-impact form throughout your run. Stay Healthy: This product received the American Podiatric Medical Association (APMA) Seal of Acceptance, awarded to products found by the Association to promote good foot health. Push Yourself: Balanced Cushioning places your heel and forefoot the same distance from the ground to encourage proper, low-impact form throughout your run.