- Product Details
- Technical specs
- Product Reviews
- Size help
- Shipping & Returns
SISU NextGen is the most powerful mouthguard our scientists have ever built. With its unmatched quality and functionality, SISU NextGen was designed with the athlete in mind. Made from non-compressible thermo-polymer SISU NextGen is engineered to withstand even more impact. Still astonishingly 1.6 mm thin, SISU NextGen delivers even more protection with its scientifically redesigned perforation pattern. The custom fit, remoldable SISU Aero Guard features a wider bite pad, rounded edges and improved moldability to empower athletes to talk normally, breathe naturally and stay hydrated during the game.
Posted by Evelyn
Originally had the mouthguard that came with the beginner roller derby kit. It was big, bulky and hurt my mouth. My sisu mouth guard however, has been WONDERFUL! Highly recommended. Easy to mold. Good protection.
Posted by Kitty
Always a great buy when SISU mouthguards are involved. I love my sisu! This will be my second one! Love!!
Posted by ImFasterThanYou
Finally! I can breath with a mouth guard in my mouth! Love it!
great mouth guard!
Posted by Brittany S.
This Sisu mouth guard is really something! Wow. I bought it thinking it sounded great, but kind of unsure if it would really work. Well- it does! It's amazing how you form it to your teeth, and then it stays. It is not bulky like normal mouth guards, and I can drink from my water bottle, and people actually understand me when I talk with it in! Great mouth guard!
Shipping & Returns
We offer 3 shipping methods for those shipping within the U.S.
Your order arrives within 6-10 business days.
Your order arrives within 4-6 business days.
Your order arrives within 2-4 business days.
We offer USPS Priority International shipping for those shipping internationally.
For more detailed shipping information please click here.
We offer a 365-day exchange policy on all of our products as long as they are in new and unused condition in the original packaging. You send the item back to us and we send you the exchange. We ship all exchanges back to you for free.
We offer a 30-day return policy on all of our products as long as they are in new and unused condition in the original packaging. You send the item back to us and we will refund your original payment method less shipping costs.
For more detailed return and exchange information please click here.