The Nano Double, is a Dual Arch, low-profile mouthguard for upper/lower dental protection with enhanced fit and comfort. Double Monocoque shock frame low-profile upper and lower dual arch structure absorbs and disperses impacts away from point of contact. Tri bite aligns and stabilizes the upper and lower jaw through front incisor and rear molar, gel-filled, bite windows enhancing protection and fit. Gel-fit liner custom molds to teeth for a tight, comfortable fit. Keeps focus on playing a sport, not wearing a mouthguard. Mora Performance Enhancement when fitted and worn correctly, positions the lower jaw down and forward, which may increase strength and athletic performance.