Hello Kitty Face Mask Cover - Reusable, Washable, Unisex, Cartoon Fashion High quality, Unisex, One size fits most, Breathable and stretchable. Color: Black Material: ONE LAYER knit fabric of finely spun polyester fibers Condition: NEW Description: • Hand wash only. • Super light weight. • Anti-droplet, anti-dust, anti-haze • Stretchy ONE LAYER laser cut thin knit fabric. • Very breathable. • NOT intended for medical use, and NOT proven to reduce the transmission of virus or cure disease.