Burberry BE4211 are square shaped sunglasses made of plastic acetate material which is both lightweight and durable. The lenses are completely U.V. protecting. Burberry BE4211 are available in size 55x20. designerglasses.co.uk offers this frame in various colours including: Burberry BE4211 30108E Olive Green/Green Gradient, Burberry BE4211 356773 Brown/Brown. At designerglasses.co.uk a scratch resistant/anti glare coating is provided Free with the optical frames.