SISU Mouthguard - Aero Guard Powered By Diffusix Technology. The Original Mouth Protecting Technology. As invisible and ultralight as the air for which it was named, SISU Aero is the 1.6 mm high-tech mouthguard that started it all. Designed for athletes who prefer to easily talk, breathe and drink during game time (otherwise known as: all athletes), the Aero is revolutionizing mouthguards one mouth at a time. More Protection The Aero is made from a high-tech thermoplastic material that is 30% stronger and has 8x greater tensile strength than conventional mouthguard materials. This means that no matter how intense things get during game time, your SISU Aero has your back and your teeth. Way Less Mouthguard The most unique feature of the SISU Aero is its super-slim, ultralight design. At a lean 1.6 mm, the Aero is 50% thinner than your standard mouthguard. Combined with its quick, custom and remoldable fit, you´ll entirely forget there´s something awesome and plastic inside your mouth. The Aero Is Perfect For: Hockey Lacrosse Soccer Basketball Roller Derby And More! Made in the USA FDA Approved BPA, Latex, PVC, Phthalate free.