An ultra-lightweight 3D sports knit mask weighing only 5g. The three-dimensional structure fits the unevenness of the face properly, making it ideal for preventing splashes. The inside is a mesh specification that demonstrates excellent breathability. In addition to moderate volume and high elasticity, we use high-spec polyester yarn with excellent flexibility. The refreshing blue fabric has a yellow logo that makes it a casual design suitable for everyday use.* There is no function to cut viruses and pollen.[About size]M size: Equivalent to the smaller size of an adult maskL size: Equivalent to the regular size of an adult mask[Characteristic]As it is a washable type, you can wash it at home and use it repeatedly.How to care[Washing method]・ Please wash once before use.・ It is not a medical mask.・ It does not completely prevent virus infection / invasion.・ Should you notice the smell of the mask or feel stuffy, stop using it immediately. SIZE INFO SIZE Side Length M 32cm (Including rubber part of ear) 14 L 33.4cm (Including rubber part of ear) 15 ※The color and size of items you see online are different from the actual thing. DETAILS●MADE IN JAPAN●MAIN:POLYEATER 100% Style No.MLF-0C-SO22