This is two layers of a tie dye cotton fabric that has just about every color under the rainbow in it. Has an opening to insert a filter or other mask if you want. Has a wire sewn in to shape it around the bridge of your nose. Masks now have flat elastic with a knot to adjust for fit. Regular size is 9 inches long, 4 inches wide folded, XL is 10 inches long, both stretch to 8 inches. Youth is 8 1/2 inches long and 3 1/2 wide, stretches to 7 inches. Machine washable and dryable. (05150)