Custom Mouthguard


Starting at $24.95

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This custom mouthguard is made to protect teeth in a more comfortable way. It’s about half as thin as other mouthguards and you mold it to a perfect, custom fit yourself at home. (It’s remoldable up to 20 times.) A perforated surface redirects impact away from teeth and allows for better airflow. You can talk and breathe normally and even drink with it in—you just might forget you’re wearing it. Made in the USA.

  • Made in the USA: Saline, MI
  • Materials: Medical grade thermo-polymer
  • Care: Keep out of sunlight and extreme heat. Clean your guard using a non-whitening toothpaste or soak in 3% hydrogen peroxide for 10 minutes only. Do not use denture tablets, dish soap, or harsh cleansers. Avoid products containing alcohol
  • Instructions: See guide for fitting instructions. The guard should not be too tight or too loose. You should be able to remove with fingers but not with your tongue
  • Includes: One mouthguard, optional freshening spray and case
  • Thin design makes the mouthguard comfortable
  • Perforated construction provides natural flow of air and saliva to allow wearer to talk normally, breathe naturally, and stay hydrated
  • Patented Diffusix™ technology distributes impact to redirect force away from teeth
  • BPA-, latex-, PVC-, and phthalate-free
  • Rounded beveled edges soften the point of contact between the guard and the mouth
  • Flexible material. When heated, provides custom fit, remoldable up to 20 times
  • $35,000 Dental Warranty
  • Used for youth sports, such as lacrosse, soccer, basketball, roller derby and more
  • Caution: Do not overheat the mouth guard (over 170° Fahrenheit)
  • For ages 11+
  • Dimensions: 2.75" x 2" x 0.06"
  • Weight: 0.0625 lb
    Optional Case:
  • Materials: Polypropylene plastic
  • Dimensions: 6.5" x 4.5" x 1"
  • Weight: 0.063 lb
    Optional Freshening Spray:
  • Ingredients: Water, glycerin, hydrogenated castor oil, xylitol, peppermint oil, metal salycilate, sucralose, rosemary extract, sodium benzoate, potassium sorbet, citric acid, mixed tocopherols, spearmint extract, cinnamon bark, coconut oil, zinc acetate
  • Dimensions: 4.75" x 1.3" x 1.3"
  • Weight: 0.2 lb

4 Reviews (4 out of 5 Grommets)

Sorted by Rating

Works great

6/27/2019 by T

It's easy to fit, and much lighter and less bulky than typical mouth guards. It doesn't provide their level of protection, I don't believe, bute, but its fine for general use.
I believe the ease of use and and it's result: frequent use will offset this disparity
That said, I don't use it too often, because it's just a pain in the neck to be popping anything in and out of my mouth every time I get on or off my bike
More > < Less



6/26/2019 by Marla

Works as advertised!


Mouth guard

1/15/2019 by Loretta

I bought this thin mouth guard to protect my teeth at night. I’m grinding my teeth for some reason? It’s real thin and fits so well thatso well that I don’t even notice I’m wearing it. It’s worth the investment.More > < Less


lousy product

2/15/2019 by Rob

This mouth guard was supposed to fit ages 11+. Might fit a small 11 year old but that's about it. Easy to heat but difficult to form to a proper fit, it was too small. uncomfortable and poor fitting. I recommend staying away from this product. I will stick with mouth guards made by a dentist and keep my teeth.More > < Less

4 Item(s)


About SISU

Custom Fit

The idea to create the SISU mouthguard was born on the operating table. Maker Jan Akervall wanted to help protect the teeth of his patients. As an otolaryngology surgeon, he knew their teeth were often exposed to potential damage during procedures.

Back at home, Dr. Akervall’s kids were complaining about the mouthguards they had to wear while playing sports. He and his wife Sassa realized the protection he envisioned for his patients’ teeth was also the perfect fit for sports-playing kids and grown-ups.

His SISU mouthguards are a fresh new approach to protecting teeth. The bulk has been streamlined out without sacrificing strength, thanks to an impact-absorbing perforated surface that won’t collapse, but instead redirects impact away from teeth.

The mouthguard is lightweight, breathable, and so comfortable, many athletes forget they have one in. (Really!) It’s up to 50% thinner than others, so you can easily drink and talk with one in.

The best part might be that with SISU, you get a truly custom fit. You can mold it yourself at home and it is remoldable up to 20 times.