Sweden's very own Sun Buddies continues to reshape modern eyewear with these vintage-inspired Frank glasses. Thinner and square-framed with a seven-bar hinge that features two visible rivets on the temple, these shades are handmade from Italian Mazzucchelli BIO-acetate with optical class 1 lenses, offering category 3 UV 400 protection that covers 100% of UVA and UVB. They also come with a cleaning cloth to keep your sight clear as day. Sun Buddies Frank Bourgogne Handmade (Italian Mazzucchelli BIO-acetate) Optical class 1 lenses Category 3 UV 400 protection that covers 100% of UVA and UVB Seven-bar hinge with two visible rivets on the temple Faux leather case Cleaning cloth included