10 Best Sports Mouthguards 2026 in the United States

The SISU Aero Medium Mouthguard is designed with athletes in mind, offering a slim and comfortable option for sports like lacrosse, hockey, and football. Its custom-moldable fit stands out because it starts flat and can be reshaped up to 20 times, making it easy to get a perfect, personalized fit. The material is a high-tech thermoplastic that’s 30% stronger and much tougher than standard mouthguards, which means it offers solid protection without being bulky.

One of the biggest pluses is its slim design—about 50% thinner than typical mouthguards—so it feels less in your mouth, allowing easier talking, breathing, and even drinking while wearing it. The perforation pattern helps with breathability and comfort, and the bite pad aids in molding it well to your teeth. Importantly, this mouthguard is free from harmful chemicals like BPA and latex, so it’s safe for long-term use.

On the downside, while it excels in protection and comfort, this mouthguard doesn't offer any flavor, which some users might prefer for freshness. Also, as it needs to be custom-molded at home, some may find the process a little tricky at first. Maintenance is straightforward—just rinse and store properly—but because it’s ultra-thin, extra care is needed to avoid damage. SISU Aero is a solid choice for athletes seeking strong protection and a low-profile mouthguard that supports easy breathing and communication, especially useful for team sports. It’s best suited for users willing to invest a bit of time into molding it perfectly and maintaining it carefully.

The SISU Aero Small Mouthguard is designed to offer a custom-like fit because it starts flat and can be easily molded to your mouth, with the added convenience of being remoldable up to 20 times if you need to adjust it. Made from a high-tech thermoplastic, it provides 30% stronger protection than typical mouthguards while being much thinner—about half the thickness of standard options. This slim design helps with breathing, talking, and drinking during sports, which is great for activities like lacrosse, hockey, and football where comfort and breathability are important.

The mouthguard also features small perforations and special zones to absorb impacts, which add to both comfort and protection. It’s free from harmful chemicals like BPA and latex, making it a safer choice for long-term use. Being ultra-thin might not suit athletes who want a more cushioned feel. Maintenance is straightforward since it can be easily cleaned and reshaped, but you’ll need to take care not to lose its shape during use.

If you want a light, strong, and customizable mouthguard that doesn’t get in the way of talking or breathing, the SISU Aero is a solid choice—especially for team sports players who value both protection and comfort.

The SISU Aero Small Mouthguard is designed for athletes in high-contact team sports such as lacrosse, football, hockey, and basketball. It provides a custom fit by starting flat and allowing up to 20 remoldings, making it easy to adjust for comfort and protection. The mouthguard is made from a strong, high-tech thermoplastic material that is 30% tougher than regular mouthguards and is free from harmful chemicals like BPA and latex, enhancing safety.

Its thin and lightweight design, about 50% thinner than typical mouthguards, enables easier talking, breathing, and drinking while wearing it. The mouthguard features small perforations and crumple zones to help absorb impact and improve comfort during play. Because of its ultra-slim profile, some users might perceive it as less bulky, which can influence the feeling of protection compared to thicker guards. Maintenance is straightforward since it can be remolded multiple times, extending its usability.

This mouthguard is well-suited for athletes seeking a snug, breathable, and less bulky option with strong material safety, particularly for youth and adult players involved in fast-paced team sports.