Tommie Copper Face Mask Gaiter OSFM Wears like a gaiter, fits like a mask. Our Community Wear Face Mask Gaiter features a built-in two-layer Tommie Copper Face Mask, for the customizable coverage you need from your face covering. Made with our highly flexible and breathable Copper Znergy 4D stretch fabric, our Mask Gaiter is loaded with comfort-focused design features that take the hassle out of both repetitive and prolonged use.