All Chaco sandals have what the company describes as BioCentric™ footbeds, approved by the American Podiatric Medical Association (APMA). These footbeds feature molded arches, offer extra shock absorption and help to prevent over pronation (when the foot rolls too far inward). Chaco claims its BioCentric™ footbeds can minimize back and neck pain, alleviate strain on the knee joints and help to prevent plantar fasciitis.
 
Additional Features
Chaco performance sandals feature a pull through strap system designed to help keep the foot in place during wear. In addition, some types of Chaco sandals feature two narrow, polyester straps that offer additional security and stability to the wearer.
Repairs.
 
Chaco offers a repair service for its sandals. Customers can send their damaged or worn down sandals to the company's Paonia, Colorado, factory for repairs. For a fee, Chaco sandals can be resoled and straps can be repaired or replaced. The company estimates that turnaround time once sandals reach the factory is about five days.