Standard Sizing: Fits Women's A to AAA and Men's B to C Widths

improved static and dynamic balance

Best for shoes that HAVE removable insoles

Improves foot

The 4 Step System comes with 4 interchangeable inserts that allow you to customize how Barefoot Science® works best for you – for reduced muscle fatigue

Original Performance Stimsoles® Insoles Retail Standard Sizing: Fits Women's ATransforms your footwear into a therapeutic exercise program for your feet. Best for shoes that HAVE removable insoles. Trimmable to 3 4 length! Comfortable, safe, and easy to use. Improves foot, leg, hip, and back problems. Clinically tested and doctor recommended. Unconditionally guaranteed.