This is a high-grade sports mask that can be used to prevent sunburn. The mouth area is made of stretchy mesh, which is highly breathable and prevents sunglasses and goggles from fogging up, making it ideal for mountain climbing, spring skiing, jogging, and other activities. It has been used about 2 or 3 times. Manufacturer: NAROO Model Number: N0U-GRY Color: Gray Size: XL Material: └Front (EX-SHADER): 100% Polyurethane └Side: 75% Nylon, 25% Polyurethane Size: Width 14.5cm x Height 21cm Description: This mask can be used for sun protection when going out, not just for sports. The EX-SHADER fabric around the mouth makes breathing surprisingly easy, even during hard sports that raise your heart rate, such as marathons. It uses contact-cooling material, so heat doesn't build up inside the mask even in the hot summer season. Thank you for looking.