Spenco RX® Clinically Designed—Doctor Recommended. At the heart of every Spenco RX® Product is a unique SpenCore® Layer—a precision engineered material that absorbs shock, reduces shear and friction and improves overall foot comfort. All Spenco RX® Insoles are unconditionally guaranteed for one year.
Targeted support and additional padding for the ball-of-foot and metatarsal arch. Three sizes - Small, Medium and Large