Morton's Extension Orthotic,Carbon Fiber Insole,Rigid Foot Support Insert for Morton'sMorton's Extension Orthotic,Carbon Fiber Insole,Rigid Foot Support Insert for Morton's The stiff and thin carbon fiber insert can limit the movement of big toe and provide support, reducing foot pain and help to recover from foot injuries effectively, suitable for Morton's Toe, Turf Toe and Hallux Rigidus. Carbon fiber insert can be worn on your right or left foot. The insert must be placed directly under the removable shoe insole. For proper fit