KEEN TOGETHER MASK, washable and reusable. The main body is made of 100% Better Cotton Initiative (BCI) material, aiming for sustainable cultivation methods. The outer layer is a durable 8oz fabric, and the inner layer is a comfortable 6oz fabric, a double-layered mask. ・Set of 2 for daily washing, allowing for daily clean use ・A pack of 2, allowing one to be washed while the other is in use ・Adjustable ear straps with adjusters. Eliminates ear pain caused by wearing a mask for long periods Product Details ・Size (cm) ｜M/L｜Width when spread: 19.0｜Height: 13.5｜ ・Material ｜Body Material: 100% Cotton｜Ear Strap Material: 75% Polyurethane / 25% Nylon｜Adjuster Material: 100% Polyurethane｜ ※Although new and unused, there may be some sun damage or scratches on the outer box. Thank you for your understanding.