Ray-Ban ORB2180 SunglassesModern design has gone full circle as Ray Ban takes the classic round shape on another revolution with style RB2180. Along with distinctive rivets and Ray Ban shaped temples, the Ray Ban RB2180 round sunglasses feature a sleek flattened bridge and stylish lenses in appealing solid, mirrored or gradient options. The Ray Ban RB2180 unisex round frames are manufactured from durable nylon, making them lightweight and able to hold up against frequent use.