Using high-quality, pre-shrunk 100% cotton woven fabric, we're creating hospital-quality masks. While non-medical, this substantial 8" wide mask measures approximately 3" at each side and approximately 5 1/2" at center for easy, breathable comfort. Soft, stretchy elastic ear loops ensure comfortable, yet snug fit. A slit along the mask underside allows the optional insertion of an additional filter (not included). Worn in the medical field, by the first responders and essential workers, our masks are protecting women and men in countless, critical fields. Recommended as the best widely-available mask design by the CDC (Centers for Disease Control & Prevention), our masks provide two layers of machine-washable protection. Honored to be helping to flatten the COVID-19 curve, we're proud to provide high-quality protection as, each day, we move closer to a cure.