SHOCK DOCTOR ULTRA STC MOUTH GUARD Shock Doctors top of the line mouth guard the new Ultra STC mouth guard is loaded with features for the serious athlete.  Ultimate protection in an improved better fitting compact size for easier breathing and speaking.   New convertible tether design allows mouth guard to be worn with the strap where required and easily removed when not.  This is a great mouth guard for martial arts, football, boxing, lacrosse, hockey and other high impact sports.  Comes in Adult (11 years old  and up) and youth (10 and under). GEL-FIT LINER Super Tight Compression Gel-Fit custom molds to teeth for a tight, comfortable fit SHOCK TRANSFER CORE new lightweight profile fits closer and directs impact away from the vulnerable front teeth to stronger triple-rooted molars to stabilize and shield the teeth AIR CUSHION SHOCK PADS new spring-effect jaw pads for a more comfortable jaw compression rate and improved fit MORA PERFORMANCE ENHANCEMENT when fitted and worn correctly, positions the lower jaw down and forward and the tongue up onto the roof of the mouth, which may increase strength and athletic performance CONVERTIBLE TETHER quick-release tether allows the mouth guard to be used strapped or strapless LATEX FREE  NOT FOR USE WITH BRACES