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🛡️ Protect your game, not your speech — the SISU Aero mouthguard means business.
The SISU Aero Medium Mouthguard offers 30% stronger protection with a high-tech thermoplastic that’s 8x tougher than conventional guards. Its ultra-slim, 50% thinner design allows for easy breathing, talking, and drinking, while being remoldable up to 20 times for a custom fit. Perfect for athletes in lacrosse, football, hockey, and more, it’s braces-friendly, non-toxic, and designed in the USA to deliver professional-grade comfort and safety.

























| ASIN | B01LZO6CDY |
| Age Range Description | Adult |
| Best Sellers Rank | #582 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #2 in Sports Mouthguards |
| Brand | SISU |
| Brand Name | SISU |
| Color | Snow White |
| Customer Reviews | 4.4 out of 5 stars 10,611 Reviews |
| Global Trade Identification Number | 00742415907689, 00851768005383 |
| Included Components | 1 Adult Sized Mouth Guard |
| Item Dimensions | 6.5 x 4.5 x 1 inches |
| Item Nype Name | SISU NextGen mouthguard, Adult 1.6 |
| Item dimensions L x W x H | 6.5 x 4.5 x 1 inches |
| Manufacturer | SISU |
| Manufacturer Part Number | S16-NG-SW-1 |
| Material | High-Tech Thermoplastic |
| Material Type | High-Tech Thermoplastic |
| Material Type Free | Materials Not Specified Free |
| Model Name | Aero |
| Model Number | S16-NG-SW-1 |
| Sport | Basketball, Football, Hockey, Ice Hockey, Lacrosse, Roller Derby |
| Sport Type | Basketball, Football, Hockey, Ice Hockey, Lacrosse, Roller Derby |
| UPC | 742415907689 851768005383 |
| Unit Count | 1.0 Count |
M**N
Great and dentist recommended!
This came recommended by my son’s dentist. He uses it for lacrosse and it works really well. It was easy to fit and he says it’s much easier to talk with than his old mouth guard.
K**Z
Great quality and easy to use
This is great lightweight mouth guard that was very easy to fit and mold to the mouth. It is comfortable and gives a snug fit without giving any pain or discomfort on the gums. It is nice and hard once it hardens after molding and seems like it will hold up well. It is very easy to remold if you don’t get it quite right the first time. Just follow the tutorial and molding is pain free and easy to do. This is great for kiddos who are in the teeth losing stages and need to change up mouthguards often
T**T
Perfect for Braces & Sports — Comfortable, Remoldable, and Game-Ready Protection
As a parent of a competitive lacrosse player, finding a mouthguard that is both protective and actually wearable has been more of a journey than expected. My daughter tried several other brands before settling on the SISU Aero Medium Mouthguard, and the difference was immediately noticeable in comfort and usability. The first thing we appreciated was how low-profile it is compared to traditional bulky mouthguards. It allows her to communicate clearly on the field and breathe more naturally, which is critical during fast-paced play. Unlike other guards that feel restrictive or constantly need adjustment, this one stayed in place and became something she didn’t constantly fight against during games and practice. A major advantage we discovered during the season was its moldability. Mid-season, my daughter got braces, which typically would have meant buying a completely new mouthguard. Instead, the SISU Aero allowed us to reheat and reshape it to accommodate her shifting teeth and orthodontic changes. That flexibility alone made this product worth it for us, especially given how often teeth positioning changes during orthodontic treatment. Protection has remained solid throughout lacrosse play. While it feels thin compared to traditional guards, it still provides confidence during unexpected contact situations. More importantly, it has not interfered with her performance, breathing, or communication on the field. Durability has also been impressive considering it has been reshaped due to braces adjustments. It continues to hold its form well after repeated use and reshaping cycles, which is not something we experienced with other brands that degraded quickly or lost fit. Overall, this mouthguard has been a practical solution for an athlete in a changing dental situation. It is especially useful for players who may undergo orthodontic changes during a season, or who simply want a lighter, more breathable alternative to traditional bulky mouthguards without sacrificing protection.
B**R
So far, solid mouth guard.
Recommended by LAX coach for youth lacrosse. Medium size seems to fit a petite teen (just at the bottom range of the height range for Medium Size). Seems to fit well, and the thin material allows talking, which is important. Absolutely no problem fitting it after watching the video instruction a few times. Will add the fifth star if it is as durable as some have said. Scary to think about, but a nice touch is that the company has a $50,000 dental guarantee of protection. Knock wood we’ll never need to find out if that’s legit!
J**N
Slim Fit, Solid Protection
I’ll admit, this guard isn’t as comfortable as the gel or silicone alternatives, but it does its job well. It just takes a little time to get used to that firmer plastic feel inside your mouth. After a few months of basketball wear, you can clearly see where my grinding happens and how the material has worn slightly—but it’s held up better than expected, especially across the front where I tend to catch the occasional elbow. Overall, it’s a solid pick if you want something slim, simple, and low-profile that still provides decent protection. And it comes in every color imaginable—for anyone who likes, or whose 3-ball game depends on, a clean pop of Neon Flash or Athletic Orange! — Curated by Jaded John | #OrderlyCleanDesign
B**B
Works great
This was good kind of hard to mold had to do it a couple of try’s
R**R
Awesome Product
Great fit and easy to mold.
V**N
nope, like x-mas wrapping an awkward shaped present
As a person formerly in the dental field, this product is certainly not worth 20 bucks at all. The shaping is cumbersome so I had to use my former life's skills to "round" out the curves that stick out to make it more comfy. After 4 tries, I got it to an acceptable form which is still a little loose but overall the arch shape is there. If you had a mold of the arch - then at least you have an easier time to reheat and cool but while on the model - winging it in the mouth is frustrating. Use boiled water in a bowl and about 30 secs is just about the perfect balance between softening and handling. Best you can do is first mold the basic shape. Once set, keep the child biting down and look at how much you have to work to round out at the curve and then curl the back up to cover 1/3 of the cheek-side crown of the teeth. That's what will be the 2nd, 3rd and likely 4th to add finishing touches. Trying to isolate and dip the sections you want to "perfect". Maybe it's me trying to get office quality mold but if you're not good with this stuff, then look for a pre arched one and not this flat one. I only got this because it was "recommended" by the coach but from my view - not good. Best option but most expensive is the dentist, but replacing broken teeth is much much more so weigh the options. I gave it a shot, this is my review for what it's worth....
J**R
Excellent protège dents.
Excellent produit
U**G
Good
Good
L**O
Excellent produit
Excellent produit. Parfait pour un Enfant de 8 à 12 ans.
I**A
値段相応
値段相応の物だと思います
A**.
No es barato , pero está bien .
Compré una talla más grande pero aún así se amolda bien aunque haciéndole un leve arreglo , es cómodo aunque duro, se puede respirar y hablar.
Trustpilot
1 month ago
1 month ago