Burberry BE4431U 414787. Sunglasses Burberry BE4431U, with square frame in acetate, are the perfect accessory for those who love a decisive style. The gray color and gray lenses give a modern look. Recommended for round and oval faces, since they add definition and structure to the features. Ideal for men. Burberry BE4431U Gray, White - These Square shaped sunglasses are great for Oval/Round shaped faces.