Stretchy: Elastic strap makes it easy and comfortable to wear, wont crack and wont hurt your ears. Free size
Comfortable: The material chosen is high quality, which is soft and skin friendly to wear
With filters: Face cover and filter could efficiently keep dust, pollen, particle in air away, keep you healthy100% Polyester,breathable without feeling smothered; One size almost fits all adults and teenagers
Occasion: for cycling, hiking, backpacking, way to school, office, travel and much more
No press: 3D design of the face cover fits your face contour, won't add too much press on your face.Code:JRYXIC