The Gould & Goodrich B99 Shoulder Strap is designed to be worn diagonally across the body, starting from the belt near the holster on one side, crossing over the opposite shoulder, and extending diagonally across the back before returning to the belt behind the holster. This strap is compatible with the Gould & Goodrich model 99D holster or can be used with a belt that has dees sewn in for attachment. It offers a secure and comfortable way to carry your holster and firearm, providing ease of access while maintaining a stable and balanced position.