Size Chart Certified by Podiatrist for Good Foot Health The American Podiatric Medical Association (APMA) is the leading resource for foot health information, representing 15,000 podiatrists across the United States. Many Alegria products carry the APMA Seal of Acceptance, which certifies that Alegria are beneficial in promoting foot health. Alegria has proven millions of times over to demonstrate the ability to provide proper support, improve posture, and reduce stress on the foot thus reducing foot pain.