Search  for anything...
SISU

SISU Aero Large Mouthguard, Snow White - 30% Stronger Protection for Lacrosse, Football, Hockey, Roller Derby, Team Sports - Remoldable Up to 20 Times - Ultra Slim - Works for Braces - Non Toxic

  • Based on 10,614 reviews
Condition: New
Checking for the best price...
$19.98 Why this price?
Save $12.97 was $32.95

Buy Now, Pay Later

As low as $4 / mo
  • – 4-month term
  • – No impact on credit to apply
  • – Instant approval decision
  • – Secure and straightforward checkout

Ready to go? Add this product to your cart and select a plan during checkout.

Payment plans are offered through our trusted finance partners Klarna, Affirm, Afterpay, Zip, Apple Pay, and Google Pay. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Selected Option

Free shipping on this product

FREE 30-day refund/replacement

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

Availability: In Stock.
Fulfilled by Amazon
Arrives Wednesday, Aug 19
Order within 6 hours and 38 minutes
Available payment plans shown during checkout
Protection Plan Protect Your Purchase
Checking for protection plans...

Recently Viewed

Size: Large (over 6' tall)


Color: Snow White


Features

  • Standard
  • Made in the USA
  • AERO MOUTHGUARD - Designed with athletes in mind, SISU Aero starts flat and is custom-molded to the shape of your mouth for an easy and perfect fit, every time. It can be remolded up to 20 times and is thin enough for talking, breathing & drinking.
  • 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.
  • STILL LESS MOUTHGUARD - Featuring a super-slim, ultra-light design, the Aero is 50% thinner than your standard mouthguard. Its perfect for team sports like hockey, lacrosse, soccer, basketball, and roller derby.
  • COMFORTABLE - This mouthguard features an optimized perforation pattern for maximum comfort and protection. Crumple zones absorb impact, while the bite pad improves moldability.
  • NON TOXIC - This mouthguard is free of BPA, BPS, latex, PVC, and phthalates.
  • INDUSTRY-LEADING MOUTHGUARDS - With unmatched quality & functionality, SISU has revolutionized mouthguard technology. Our mouthguards are designed with the athlete in mind, known for their protection, comfort, cleanliness & remoldability.

Features

  • Standard
  • Made in the USA
  • Large sports mouthguard offers premium warrantied dental protection; fits larger mouths, or athletes over 6 feet tall
  • At only 2.0mm thick, the ultralight design of the Aero is 50 percent thinner than conventional sports mouth guards, providing maximum comfort and convenience
  • The slim, custom fit makes it easy to talk, breathe and drink without removing the guard, which contributes to better hygiene
  • Diffusix technology scientifically distributes impact forces from soccer, hockey, roller derby, lacrosse, basketball, and other contact team sports
  • SISU guards feature a wider bite pad, rounded edges for comfort and improved mold-ability to ensure a perfect fit; quickly and easily mold (and re-mold) at home with hot water

Description

At a lean 1.6mm, the ultralight design of the SISU Aero Mouthguard is 50% thinner than conventional sports mouth guards. Combined with its quick, custom and remoldable fit, you´ll entirely forget it’s there.


Item Package Dimensions L x W x H: ‎6.69 x 4.65 x 1.18 inches


Package Weight: ‎0.02 Kilograms


Item Dimensions LxWxH: ‎5.63 x 3.63 x 0.88 inches


Brand Name: ‎SISU


Warranty Description: ‎Manufacturer’s Warranty


Model Name: ‎Triple Eight -SISU AERO LARGE SNOW WHITE (S16-LG20SW)


Color: ‎Snow White


Material: ‎Plastic


Suggested Users: ‎Unisex


Number of Items: ‎1


Manufacturer: ‎SISU


Part Number: ‎S16-LG20SW


Style: ‎Large


Included Components: ‎SISU AERO LARGE SNOW WHITE


Size: ‎One Size


Sport Type: ‎Roller Hockey, Hockey, Soccer, Lacrosse, Basketball


Date First Available: February 19, 2020


Product Dimensions ‏ : ‎ 5.63 x 3.63 x 0.88 inches; 0.63 ounces


Item model number ‏ : ‎ LG20SW


Department ‏ : ‎ Unisex


Date First Available ‏ : ‎ February 19, 2020


Manufacturer ‏ : ‎ SISU


Best Sellers Rank: #540 in Sports & Outdoors (See Top 100 in Sports & Outdoors) #2 in Sports Mouthguards


#2 in Sports Mouthguards:


Customer Reviews: 4.4 4.4 out of 5 stars (10,611)


Brand Name: SISU


Sport Type: Basketball, Football, Hockey, Ice Hockey, Lacrosse, Roller Derby


Model Name: Aero


Age Range Description: Kid


Manufacturer: SISU


UPC: 850005600589


Model Number: LG20SW


Manufacturer Part Number: S16-LG20SW


Manufacturer Warranty Description: Manufacturer’s Warranty


Item Nype Name: SISU AERO LARGE SNOW WHITE


Unit Count: 1 Count


Included Components: SISU AERO LARGE SNOW WHITE


Color: Snow White


Item Dimensions: 5.63 x 3.63 x 0.88 inches


Material Type: High-Tech Thermoplastic


Material Type Free: BPA Free, BPS Free, Latex Free, PVC Free, Phthalate Free


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Wednesday, Aug 19

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • Zip Pay in 4
  • Financing through Apple Pay
  • Financing through Google Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Similar Products

Top Amazon Reviews

    • Great and dentist recommended!
Size: Large (over 6' tall) Color: Snow White
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.
Reviewed in the United States on May 12, 2026 by Megan Mattson
    • Great quality and easy to use
Size: Medium (5' - 6' tall) Color: Charcoal Black
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 ... show more
Reviewed in the United States on January 16, 2026 by Kaila Diaz
    • Perfect for Braces & Sports — Comfortable, Remoldable, and Game-Ready Protection
Size: Medium (5' - 6' tall) Color: Purple Punch
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. ... show more
Reviewed in the United States on May 8, 2026 by Tamra Vanderhorst
    • So far, solid mouth guard.
Size: Medium (5' - 6' tall) Color: Lucky Lavender
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! ... show more
Reviewed in the United States on February 18, 2026 by bottomliner
    • Slim Fit, Solid Protection Slim Fit, Solid Protection
Size: Medium (5' - 6' tall) Color: Snow White
Review Image by Jaded John
Review Image by Jaded John
Review Image by Jaded John
Review Image by Jaded John
Review Image by Jaded John
Review Image by Jaded John
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 ... show more
Reviewed in the United States on November 10, 2025 Reviewed in the United States on November 10, 2025 by Jaded John
    • Works great
Size: Small (under 5' tall) Color: Intense Red
This was good kind of hard to mold had to do it a couple of try’s
Reviewed in the United States on May 29, 2026 by B
    • Awesome Product
Size: Medium (5' - 6' tall) Color: Hot Pink
Great fit and easy to mold.
Reviewed in the United States on May 5, 2026 by Ryon Batker
    • nope, like x-mas wrapping an awkward shaped present
Size: Small (under 5' tall) Color: Lucky Lavender
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.... ... show more
Reviewed in the United States on August 15, 2025 by Vance N

Can't find a product?

Find it on Amazon first, then paste the link below.
Checking for best price...