The ultra-reliable Shock Doctor Gel Max Mouthguard offers high impact shock absorption with its EXOSKELETAL SHOCK FRAME™ and a GEL-FIT™ LINER that molds to your teeth for a comfortable, custom fit. Its key features include high impact shock absorption in critical areas, a GEL-FIT™ LINER that custom molds to your teeth, and an EXOSKELETAL SHOCK FRAME™ for enhanced shock absorption.