and Speed 11 is equivilant to 1/4"

designed for the ultimate performance

our new recycled PU insole takes things up a notch

Soft and cushioning

The last word in comfort

CCM SISU 3D Adult Mouthguard (With Case) Color:White and Speed 11 is equivilantSISU Mouthguards are known for their unmatched protection, comfort, cleanliness, and remoldability. Though it might not seem possible, we made an even better mouthguard! SISU Tether uses the newer SISU 3D design that improves on previous SISU models, and adds a number of new features: Specs Pre formed guard for an effortless, fast, fit and go shape Variable material thickness to put protection where it is needed, and comfort where it is desired 2. 0mm