These masks are not FDA Approved. Please note these are not a replacement for medical grade N95 masks or PPE, but are meant to bridge the gap Our mask is made of 100% cotton with two layers + Filter pocket The material your masks straps are made of very soft elastics string straps Our mask s reusable and fully washable This is a handmade mask Recommended care: routinely wash on delicate depending on frequency of use Sizes available: Toddler ( 2-5 years old) Kids 6-12 Year old Women & Men