These masks are not FDA Approved. Please note these are not a replacement for medical-grade N95 masks or PPE. Material: Double Layered (Rayon Poly fabric) Straps: Cloth string made from the same fabric as the mask itself. Reuseable: routinely wash depending on the frequency of use. Not handmade. Size: one size fits most teens or adults. All sales final - no returns or exchanges on face masks.