Review on Ultimate Comfort: Washable & Reusable Translucent Internal for Unmatched Experience by Matthew Allen

The concept is amazing and I can see how they would be extremely useful under a sheet face mask. However, there are really few! If you keep your mouth closed, they'll sit just right, the bottom being just below your bottom lip. But as soon as you start speaking, the bottom edge is right in your mouth. I don't have a big head or face or anything. Quite normal I think. These are too small. They would be helpful for kids to make them feel more comfortable wearing masks at school or in stores.