Orthaheel GEL HEEL DEVICE Podiatrist-designed as a more effective alternative to basic heel cups. Designed for everyday use: fits most types of women's and men's footwear. Built-in rear-foot angle that helps control mild-excess pronation and restores the foot to the neutral position. Soft 100% nylon topcloth with EcoFresh earth-friendly microbe shield technology to help safeguard against odor-causing bacteria. Shock-absorption with a shock dot in the center of the heel. May provide effective relief from heel pain, knee pain, back pain, aching legs and many common foot problems. For best results, it is recommended that you replace your orthotics every 12 months.