Primarily made of a bio-based acetate, the Givenchy "GV Day" sunglasses are defined by a square shape and subtle accents unique to the brand.; Eye/bridge/temple (in mm): 55-18-145; Solid lenses; 4G emblem on the front; GIVENCHY signature on the temples; Thick, tapered arms; 100% UVA/UVB protection; Clean regularly with a soft cloth; Imported