Check the listing for details. Backpack Chest Strap Set Strap w/ Quick-Release Buckle Black Red, 2Pcs. Condition: New with tags. Listed at 16.56 USD. Why Choose This:★Specification: Color: Black, Red; Material: Polyester; Total Length: 27cm / 10.63"; Strap Width: 2.5cm / 0.98"; Adjustable Length Range: 15-22cm / 5.91-8.66"; Package List: 2 x Backpack Chest Straps★Instruction: 1. Fully open the strap, and pass the end of the strap through the shoulder strap of the backpack to wrap the shoulder strap. 2. Pass the webbing through the adjustment buckle, adjust the position of the webbing, then tighten it to the shoulder strap. 3. After the both sides are installed, adjust the position and fix the webbing back through.★This backpack chest strap is mainly used to fix the backpack on the chest, and let the backpack not easy to slip off, allowing you to release your hands and bring you a wonderful experience.