BOSS Face Mask in Black / White. Unisex and logo-laden, this face-covering from designer brand BOSS is crafted using interlock fabric for a superbly soft and breathable finish. Washable and therefore a sustainable solution, the design boasts a stretchy cotton construction and elasticated loops for securing the accessory upon the face. Sizing Measurements: Small: Width at top: 20.5cm. Height in middle: 14.5cm Medium: Width at top: 23cm. Height in middle: 16.5cm Large: Width at top: 25.5cm. Height in middle: 18.5cm Please note this is not a medical device and cannot be classified as personal protective equipment, it is also non-returnable.