Worn by NFL elite as well as little "gridders" on football fields across the county, the Vettex Model 25 Mouthguard features patented breathing channels that make achieving your best a little easier to grasp. The guard is made of pliable, thermo rubber for cushioning comfort, as well as an easy effort, custom, double-impression fit. An adjustable strap provides added safety. A limited dental warranty is included with ddtails listing on the packaging. One ADULT size fits all in any one of the Vettex.