The Shock Doctor MicroFit Mouthguard delivers our thinnest, most advanced protection in a 2.4mm design with a new chrome finish that stays fresh every time you use it. Our lowest-profile design is the ultimate custom-like fit for speaking and breathing easy, and I-Mold technology provides a smooth contour and high level of comfort. Slim Fit: Less material, lower profile, better breathability Custom-Like Fit Lowest-profile design uniquely forms to your teeth Less material means less interference Highest performance in a 2.4mm design I-Mold technology provides a smooth contour Made of HMW Composite Blend that maintains fit all season long. Meets national and high school rules Suitable for most contact sports where a mouthguard is required or recommended including Basketball, Hockey, Lacrosse, Football and more. Free of Latex, BPA, Phthalate Dental Warranty