Ray-Ban Sunglasses 2180 710/73 Tortoise Brown B-15 are an excellent addition to Ray-Ban iconic sunglasses range with this retro round style with the unmistakeable touches from Ray-Ban that make it an instant classic. The hinge pins taken from the wayfarer along with the winged temples and Ray-Ban logo are signature pieces but the keyhole bridge and often matt finishes are new and exciting.