The BlackRapid Backpack Breathe Camera Strap is designed for connecting to back pack, adjustable length nylon webbing with Connector (CR-3), cover (Lock Star) & fastener (FR-5) hardware, packed in a small polyester dust bag. This strap attaches to compatible backpack shoulder pads so your backpack can become your camera strap. Aluminum-alloy snap-lock carabineers allow the strap to securely attach to any D-rings or loops along a backpack's shoulder strap.