This mask is made with breathable fabric, perfect for keeping your child protected comfortably. It also provides full coverage from the top of the nose to the bottom of the chin. The ear straps have rubber pieces that slide to adjust to fit. This mask also comes with a built-in pocket to insert a filter if desired. One size fits most. Also fits most adults. These masks are for general non-medical purposes only. We believe medical, surgical, or N95 masks should be reserved for healthcare workers and medical first responders. Please note: Bandanas, handkerchiefs and face masks are not eligible for refunds until further notice.