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🦸♂️ Protect your game with the mouthguard that’s as tough and adaptable as you are!
The SISU Aero Medium Mouthguard in Lucky Lavender offers a revolutionary 1.6mm thin, custom-molded fit made from a high-strength thermoplastic that’s 30% stronger than conventional materials. Designed for team sports, it’s 50% thinner than standard guards, allowing easy talking, breathing, and drinking. Remoldable up to 20 times, it combines durability with comfort through advanced perforation and crumple zones, all while being non-toxic and free from harmful chemicals. Trusted by athletes nationwide, it’s the perfect blend of protection, performance, and style.

























| ASIN | B07D6BZTCG |
| Age Range Description | Kid |
| Best Sellers Rank | #392 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #1 in Sports Mouthguards |
| Brand | SISU |
| Brand Name | SISU |
| Color | Lucky Lavender |
| Customer Reviews | 4.4 out of 5 stars 10,579 Reviews |
| Global Trade Identification Number | 00858286007707 |
| Included Components | Mouth Guard |
| Item Dimensions | 4.72 x 0.79 x 6.3 inches |
| Item Nype Name | SISU Mouth Guards Aero 1.6mm Custom Fit Sports Mouthguard for Youth/Adults, NextGen, Lucky Lavender |
| Item Weight | 0.02 Kilograms |
| Item dimensions L x W x H | 4.72 x 0.79 x 6.3 inches |
| Manufacturer | SISU |
| Manufacturer Part Number | S16-NG-LL-1 |
| Manufacturer Warranty Description | e SISU Max NextGen for maximum protection. SISU mouth guards are backed by a $35,000, one year limited dental warranty protection |
| Material | High-Tech Thermoplastic |
| Material Type | High-Tech Thermoplastic |
| Material Type Free | Latex Free, PVC Free, Phthalate Free |
| Model Name | Aero |
| Model Number | S16-NG-LL-1 |
| Sport | Basketball, Football, Hockey, Ice Hockey, Lacrosse, Roller Derby |
| Sport Type | Basketball, Football, Hockey, Ice Hockey, Lacrosse, Roller Derby |
| UPC | 858286007707 |
| Unit Count | 1 Count |
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
E**N
Perfect Competition Mouthpiece
Very strong, easy to shape! Perfect for my martial arts competitions. You can easily talk and breathe while it’s in. I like that it molds to your teeth for a perfect fit. Shipped timely. Highly recommend!
J**T
Well made & works well.
I have had many bite guards. Some that cost hundreds of dollars. When I first opened package I thought this one was not going to work. It is thin & comes in small package. AI was pleasantly surprised. It is easy to mold, fits securely and I don’t bite through it. I am very happy with it!
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!
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**V
Lightweight, easy to use and communicate mouth guards
These are the most durable and effective mouthguards. They are low profile but allow the user to communicate easily on the playing field. Our Orthodontist told us they are the best product next to an Invisalign to protect the teeth and gums. They are very simple to form and the company provides easy instructions for use, your mouth guard can be ready to hit the field after just a few minutes. One thing our family likes is the size of the guards for small to larger mouths. They provide a guide that is right in. Lastly there are great color choices and our family likes to have a few different ones in their sports bags.
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....
M**I
Good solution for nighttime teeth grinding in kids
As described, thin and easy to mold. Just be careful as it does need to be hot to mold but you need to wait a bit to get the right moment so it is still moldable but won't burn you. It's easy enough and if you mess up you can do it again. We got this for child's teeth grinding at night and it stays in pretty well without restricting his teeth from normal growing. Size was accurate. I don't know how protective it would be for sports, but it's perfect for what we needed and has really helped prevent teeth grinding at night.
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.
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.
A**S
Parfait
Parfait
Trustpilot
4 days ago
2 days ago