【One Size Fits Most】- The Natural length and width is 17.8in and 9.4in. High stretchable circumference is about 20 – 24in. It accommodate for most head size, suitable for both men & women, adults & kids. 【Sun Protection and Dust Proof】 – Wear it as a UV face mask to protect your face from direct sunlight. When you are going out for fishing, running or hiking, they make your face sweaty. While this neck gaiter scarf bandanna help keep your skin refresh your nose and mouth clean from breathing dust either. And you also can keep one in your hair to prevent dust build up. 【Muti-functional Design】-Our headbands have more than 12 different dress ways,and easy to breath and wear. You can use it as neck gaiter, headband, wristband, hiking, headband, Bandanna, head wear, head wrap, scarf, mask, balaclava, hat, neck warmer, wind or dust screen and much more.