The Black Rapid BRAD (Black Rapid Arm Defense) (Black) is an option primarily designed for the Black Rapid RS-7 strap but it can also work with the RS1-5 straps. It attaches to the strap for a more secure fit during action shots. Worn under the arm, the BRAD will make sure that the strap stays put. It attaches using 2 strap hooks and a quick release buckle.