2180 710/73 Tortoise Brown B-15 51mm are an excellent addition to iconic sunglasses range with this retro round style with the unmistakeable touches from that make it an instant classic. The hinge pins taken from the wayfarer along with the winged temples and logo are signature pieces but the keyhole bridge and often matt finishes are new and exciting. Ray-Ban Unisex Round Tortoise Brown B-15 2180 Sunglasses