<br>Material: Middle layer and Inner layer: 100% cotton; Outer layer: DWR Polyester; soft and breathable<br> <br>Features: washable, reusable, adjustable ear loops and elastic ear straps<br> <br>Suitable for all people(unisex, women, men and kids over 10 years old)<br> <br>Color: Black<br> <br>Size: Medium, Large, X-Large<br> <br>Measurement: Medium <br>Package content: 4 pieces<b> </b>