This dust mask can be used when cycling and other outdoor activities to prevent you from dust, sand, bionfly and even sunshine.<br><br><strong>Features:</strong><br>Low resistance. Unique ventilated design and double air valve help you breathe easier and freely when you are riding bike.<br>Ergonomic design, fit face perfectly.<br>Adjustable fastener tape, you can adjust the mask freely according to your demands.<br>Neoprene fabric material, soft and comfortable.<br>Activated carbon filter piece can filter out 95% dirt.<br>Cool patterns. <br><br><strong>Specifications: </strong><br>Fabric: Neoprene<br>Applicable gender: Unisex <br>Item Weight: 40g / 1.42oz <br>Package Size: 16 * 20cm / 6.3 * 7.9in <br>Package Weight: 50g / 1.8oz  <br><br><strong>Package List: </strong><br>1 * Face mask  <br><br><strong>Note:</strong> Please allow 1-2cm (0.4-0.8") differences due to manual measurement, thanks.