Pretty 2-layer face mask for kids to wear everyday. It is easy to breath, and comfy to wear. It is made with smooth organic cotton with its back lining. Please adjust the strings for your child when you receive the mask. Materials: F:45%Cotton, 55% Linen B:100% Organic Cotton Shipping By AirMail and Simple packaging For shipment to Asia area, it takes apx. 7days. (holidays excluded) *It’s important to combine with other things to protect yourself and others from virus.