RDX Mouthguard Boxing Gum Shield MMA Kickboxing Muay Thai Bite Guard Mouthpiece Mouth Protector Martial Arts Hockey Judo Karate Rugby Poly Gel latex-free gum shield, defends your teeth from any contact sports. Gel fit lining for maximum shock absorption. Tri-Flow perforations allows to escape the air and makes breathe easier under strains. Acrigel padding to cushion molars at the back. RDX patent pending mouth guard comes with anti-microbial carry case. Fits best for adults(+12) & youngsters(-12)alike. NOT RECOMMENDED WITH BRACES. NEVER CHEW YOUR MOUTH GUARD.