The SISU 1.6 Aero is the most powerful mouthguard our scientists have ever built. With its unmatched quality and functionality, the SISU NextGen mouthguard 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, the SISU NextGen mouthguard 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.
Domestic Shipping (USA)
Contiguous USAFREE standard shipping for orders over $99 ($10 for orders under $99).
Allow 2-3 BUSINESS days for processing + 2-3 days (estimated) for order to arrive.
AK, HI, US TERRITORIES$30 standard shipping for orders under $199; $15 for orders over $199.
Allow 2-3 BUSINESS days for processing + 4-6 days (estimated) for order to arrive.
Rush shipping available (ships UPS 2nd Day Air + allow up to 1 BUSINESS day for order processing). Current rate calculated at checkout.
CANADACurrent rates calculated at checkout.
EUROPE (select countries)An order minimum of £135 is set for customers in the UK.
Current rates calculated at checkout.
AUSTRALIACurrent rates calculated at checkout.
Returns and Exchanges
HOLIDAY EXTENSION: For orders placed between November 1st, 2023 and January 1st, 2024, we will accept returns up to 60 days after the date your order was delivered, and exchanges up to 90 days after the date your order was delivered
- We offer a 30-day return policy and a 90-day exchange policy (available to customers in the U.S. and Canada only).
- Returns for exchange or store credit ship back free of charge!
- Returns for refund to original payment method are subject to a return shipping fee ($12-$18 depending on location)
- Items must be returned in new condition and with their original product box in order to receive a full refund. Items returned with visible signs of use (scuffs, dirt, hair or other debris) or missing components may be rejected by our Returns Department or charged a 20%-50% damage fee (deducted from refund).
- Once we receive your return, please allow 3-5 business days for your return to be processed.
Write a Review
Great product, easy to mold, comfortable to wear, I often forget I have it is. Dental protection plan is great.
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.
Always a great buy when SISU mouthguards are involved. I love my sisu! This will be my second one! Love!!
Finally! I can breath with a mouth guard in my mouth! Love it!
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!