Multi-purpose neck gaiter with 5 layers carbon filters can protect you from dust, germs,allergies, smoke, pollution, ash and cold weather. It can let you stay in more healthier environment. Super soft and elastic material is available for almost adult in one size 9 x 15?. It is breathable, easy cleaning and fast drying, which is convenient for your life. The design is unique and different from traditional head wear. You can use it as neckerchief, headband, face scarf,as your want in different environment, such as cycling, fishing, hiking, running, hunting,riding, yoga, travel , climbing mountains, etc. PACKAGE: 2 pcs adult neck gaiter with 20 pcs carbon filter for reusable.