<br>Material: Inner layer: 100% cotton; Outer layer: Cotton and Spandex; soft and breathable<br> <br>Features: washable, reusable, adjustable nose wire and elastic ear loops<br> <br>Suitable for all people(unisex, women, men and kids)<br> <br>Colors: Blue Galaxy, Navy Blue, Black<br> <br>Size: One Size( fold measurement 5.9 x 4.53 inch)<br> <br>Package content: 4 pieces<b> </b>