Review on REVIVEL 3D Bracket Silicone Bracket Face Comfortable Breathing by Shigg Bigbee

It keeps the masks off your face during active exercise so you don't choke on them. It's flexible and quite soft and rubbery so it doesn't scratch. This is significantly smaller than the masks themselves, another plus point. However, I've only tested it with origami-style 3D masks, not the more appropriately shaped stretch masks. I don't know if it will work better on them as these masks will almost suffocate me on their own and will solve this problem.