ONE SIZE: The natural length and width is 16.5 x 9.4 inch, high stretchable, it fits teenagers as well as adults of all ages. COMFY TO WEAR: Our multi-use headwear it is breathable and stretchable can keep you comfortable in any position.And it has exceptional absorbing and wicking features to keep you dry all day. COOL DESIGN AND MULTIFUNCTION: This face mask have more than 12 different dress ways, it can use as a head wrap, face scarf, balaclava, face mask, beanie, headband, neck gaiter, sweat headband or scarf bandana. And the fashion designs can makes you look great in any occasion. It is a great gift for you and friends and a good choice for traveling, walking, yoga, sport or music festival. SUN PROTECTION AND DUST PROOF: When going out for running, cycling or motorcycling, wearing it as a face mask, headband, scarf bandanna or neck gaiter can protect your face, head, neck and ears from being over exposed to the harmful rays of the sun and keep your nose, mouth clean from breathing dust. You also can keep one in your hair to prevent mud build up. OUR SATISFACTION IS OUR CONCERN: If you have some trouble in product quality, please contact us once you find a product received has failed your expectation, our team will try best to respond to your satisfaction. No risk to buy! Add to your cart now.