The Gel Max Flavor Fusion Mouthguard delivers essential protection and comfort. Includes a convertible quick-release tether that allows the mouthguard to be used strapped or strapless. This triple layer mouthguard provides a universal fit for all ages. Gel Max Flavor Fusion Mouthguard Size Chart Size AGE YOUTH 10 and Under ADULT 11 and Over MOUTHGUARD FITTING INSTRUCTIONS The Gel Max Flavor Fusion Mouthguard delivers essential protection and comfort. Includes a convertible quick-release tether that allows the mouthguard to be used strapped or strapless. This triple layer mouthguard provides a universal fit for all ages. Comes in multiple flavors to suite anyone's taste! CLASSIC FIT: All-around performer, ideal for impact sports. CUSTOM FIT - Our low profile, Gel-Fit liner custom molds to teeth for a tight comfortable fit. BUILT TO PROTECT ? Triple layer design with integrated breathing channel for all purpose protection. STRAPPED OR STRAPLESS ? Quick release tether gives you the choice. IDEAL FOR MOST SPORTS -Suitable for all contact sports where a mouth guard is required or recommended including Football, Basketball, Lacrosse, Hockey, Soccer, Wrestling, MMA, Boxing, and more! LEGIT - Meets national and state high school rules NO FUNNY BUSINESS ? LATEX FREE, BPA FREE, PHTHALATE FREE DENTAL GUARANTEE - $35,000 Dental Warranty NOT FOR USE WITH BRACES