BOS Face Masks are 100% cotton knitted non-surgical, non-medical, reusable face masks is versatile, with a one size fits most design and over the ear loops to stay in place. Features: imported, 100% cotton, mask is not FDA approved, not intended for medical use, and not proven to reduce the transmission of disease, the CDC recommends us of cloth face coverings in public to reduce community spread by asymptomatic persons, unisex design, one size fits most, mask is 5” from nose to chin and 7” ear to ear, over the ear design, and 3 ply cotton contains silver.