The black DR-2 Slim Double Strap from BlackRapid is worn around the shoulders and is adjustable to fit most photographers. It will carry 2 cameras or lenses vertically at the side. Two locking FastenR3 connect the straps to the tripod socket located on either the camera body or the lens. Once connected, the cameras hang upside down, resting securely at the side of the body. Detach half and use it as a single R-Strap. The RS-DR2 double strap fits men and women.
The difference between Black Rapid's DR-1 and DR-2 is that the DR-1 is for larger framed people while the DR-2 is for smaller framed people. The DR-2 is narrower across the shoulders.