Shock Doctor Max AirFlow 2.0 Lip & Mouth Guard allows players to flash their brilliance and shine above all from one End Zone to the other. The Air Flow breathing channel allows 10% more air compared tp the previous version. The updated design and platform relax the jaw and prevent teeth from blocking the breathing channel, adding more flow capacity. The flexible, proprietary Shock Doctor polymers and integral bite pads ensure max comfort and easy, no mold fit.