●Robust and durable: the chest strap for backpack replacement is made of strong, durable POM and PP material in black. It is handy and great to unwind and it hardly interferes with your journey. ●Size: the width of our backpack chest strap is 2.5 cm, the length can be adjusted, the chest strap can be adjusted to 37 cm. Thanks to its size, the packing strap is easy to store. Then you can adjust the length as needed. ●Safety and comfort: Our non-slip backpack strap is designed so that the shoulder straps of the backpack can be securely and firmly fixed. In this way, the shoulder straps do not need to be firmly gripped with your hands to keep the backpack securely on the shoulders. This distributes the pressure of the backpack on the childs back and reduces pressure on the shoulders, so that the childs shoulders do not tire easily. ●Easy to attach: adjustable chest strap, simply loop the strap around shoulder straps and attach with sliding buckles. Can be freely adjusted as needed. It effectively prevents the backpack from slipping off your shoulders. ●Works with all backpacks: this backpack chest strap is suitable for all brands of backpacks, shoulder bags and also for outdoor activities such as camping, hiking and cycling etc. Effectively prevent the backpack from slipping off your shoulders and make your journey easier.