Here we have unique bifocal sunglasses - safety glasses with magnifying inserts on the bottom of the lens. This combination is not so common and hard to find. These sunglasses feature soft foam, so no wind or dust gets in the eyes. Both the temples and the nose bridge flex and adjust for a custom fit. Lenses are made from shatter resistant polycarbonate (not acrylic!), ear and nose pieces are made from integrated rubber, which keeps glasses from sliding. Magnifying part is useful when you need to track GPS, use phone, ect.