The Ultra Braces Convertible Mouth Guard is a low perimeter Gel-Fit mouth guard designed for athletes wearing braces. Shock Doctor"s introduction of the Gel-Fit mouth guard is a welcome innovation to parents and kids everywhere. A special ortho channel fits around the brace brackets and adapts to changes in tooth position as braces are adjusted. A quick release tether allows the mouthguard to be used strapped or strapless.