The always reliable, never-fail Shock Doctor Gel Max Mouthguard strives to deliver all the essentials from protection to comfort. Your comfort begins with a custom molding Gel-Fit liner that gives you a tight, personalized fit. The multi-layer construction, including an exoskeletal shock frame with heavy-duty rubber for impact protection, has an internal shock-absorbing frame that offers protection and fit that outperforms conventional mouthguards. Recommended for ages 11 and older.