This is a new strap that is more convenient and practical than the old one. Universal Sternum with any backpack 2cm buckle for quick and easy insertion Made of rugged military-grade nylon and a powerful side-squeezing buckle, securely hold the backpack's shoulder strap in place, giving your hands free Adjustable . you can adjust it to your expected length. backpack chest strap adjustable backpack sternum strap chest belt with buckle for hiking and jogging, black Suitable for handbags,Water bag backpack, ice bag backpack,sports backpack， luggage, totes, briefcases, carts, wheeled luggage and more, can release your hands and help you enjoy your trips better. Keep shoulder straps of your backpack securely in place, and give your hands free. Good choice for outdoor activities. Note: Please allow a slight errors due to manual measurements.