• Nylon materialBackpack strap is made of 0.75 nylon material, which has good toughness and light weight, suitable for repeated and long-term use, and it can also be quickly unbuckled when you want to take off your bag
• Adjustable SizeThe length of the the backpack chest strap can be adjusted from 8"-16" as needed, compatible with most sizes.
• Wide usagethey can be applied for mountaineering backpacks, student backpacks, luggage bags, travel bags, and more, bringing you fluent using experiences
• Outdoor activitiesthe chest strap for backpack can keep the backpack shoulder strap from slipping off, making your mountain travel easier, and you can easily adjust the size during outdoor traveling, suitable for both adults and children