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99.996% Effective
SISU Mouthguards are engineered to withstand impact. Built-in perforations redirect impact forces to protect you from the toughest hits.
Ultra Comfortable
SISU Mouthguards are astonishingly thin and comfortable. Perforations allow our athletes to talk, breathe, and drink with ease.
Freedom to Play
SISU Mouthguards mold to the unique shape of your mouth. The guard remains in your mouth the entire game or practice - you never need to take it out.
Remoldable up to 20x
SISU Mouthguards are made from a unique medical grade thermo-polymer which is 30% stronger and can be remolded up to 20 times.
Jessica
Reviewed in the United States on February 6, 2025
The design is perfect for my 13 yr old daughter that wrestles. She is able to breathe, talk and drink with it in and does not choke on it like other mouth guards she has tried. After a mouth injury where she had to wear a retainer (Invisalign type) full time for a few weeks to stabilize her tooth she was able to reshape the mouth guard over it. We will be back to purchase more for our other kids that are in sports.
Kari D.
Reviewed in the United States on February 18, 2025
I got this for my son for wrestling after he chipped a tooth last year and the dentist suggested I buy a mouth guard at a store or offline for him as it was a lot cheaper than one through them. He has used this mouth guard all season he can breathe, talk & wrestle with it in. He says it fits so nice and snug to his teeth and has held up great but he did tell me he wants me to stock up so I'll be buying more as he's thinking about using it for football season too lol
Kristen
Reviewed in the United States on February 14, 2025
Product is a great choice as it is minimal so it does not make it hard to breath when playing. I also like the authentic fit and being able to mold and re-mold as much as necessary to get the proper fitting.
Loren
Reviewed in the United States on February 10, 2025
Easy to fit and use. Can definitely breathe better wearing it.
dboyle
Reviewed in the United States on January 2, 2025
The most common mouthguard for roller derby. The Aero was the closest size for me. Forming and fitting it was a learning curve that took me about 8 tries. Here’s what I’d recommend:Hot but not boiling water. Sisu advises boiling water will ruin the protection. I used water from a coffee percolator. That didn’t seem to be hot enough to get it soft. I brought water to very close to boiling, let it cool for a minute, then poured it into a Pyrex measuring cup.Use a mirror. First position it so your front teeth are on the bite pad. Gently close your jaw and push the sides of your cheeks to push the sides up. At the same time, use suction but not too much!! The first few times, this mouthguard was painful when putting it in after molding. I think this was because I used too much suction. Just gently hold your jaw closed and use light suction.Hold it in place for 5 minutes or so so it doesn’t change shape. If there are pointed ridges on the outside lip guard from bending, dip those creases back in hot water for a few seconds, put the mouthguard back in and smooth those creases out.Finally, the last try using less suction and remolding the creases out made this comfortable with no pain when it cools down!
end me
Reviewed in the United States on January 15, 2025
i saw a lot of bad reviews that kinda scared me about it being hard to mold, or melting/shrinking when trying to mold. I followed the directions on the packaging and in one go I got a perfect mouthguard. Locks in nicely against the roof of my mouth, I can talk, drink water, whatever. Very comfy!
Kyle
Reviewed in Canada on September 19, 2024
Got for my 9yr old son and we tried numerous times but couldn’t mould the dang thing. Waste of money for us :(
Manuel Brito
Reviewed in Mexico on August 18, 2024
excelente producto, fácil de usar y práctico
ssentner
Reviewed in Canada on July 21, 2024
Great fit, easy to mold!
Jona alvarado
Reviewed in Mexico on March 30, 2024
No es original, es un clon mal hecho no compren
AMC
Reviewed in Canada on December 30, 2024
Waaaay better than any other mouth guard we’ve tried.
Customer
Reviewed in the United States on December 27, 2024
Molding is a little time consuming since we had to do it a few times to get it even. Haven’t used yet, but seems okay!
Natalie
Reviewed in the United States on December 26, 2024
These are our go to for sport mouth guards. They are much thinner than others which makes them more comfortable. If your kiddo likes to chew on the mouth guard, my daughter states that little flecks of plastic don't come off, like her other brand was doing.
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