Add a chest strap to your backpack for extra stability more convenient practical Adjustable, you can adjust it to your expected length,2cm wide
HDHYK[2 Pack] Backpack Chest Strap Heavy Duty Adjustable Backpack Sternum Strap Chest Belt Suitable for Webbing on The Backpack up to1in.(Black)
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Sternum Strap : Kids' Backpacks : Target
Universal backpack Chest Strap Made of 2cm wide Polypropylene Webbing, durable to use. 2cm buckle for quick and easy insertion hold the backpack's shoulder strap in place and free your hands. adjustable. You can adjust according to the expected length.
Amlrt HDHYK Backpack Chest Strap- Nylon - Adjustable Universal (Pink)
Non Slip Adjustable Shoulder Strap For Childrens Backpacks Securely Carry School Bags And Outdoor Gear, Check Out Today's Deals Now
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Sternum Strap for Backpacks, Backpack Chest Strap for Adults and Kids, 2 Pack Heavy Duty Adjustable Outdoor Backpack Accessories with Quick Release Buckle for Hiking Climbing Riding Runing and Blower : Sports & Outdoors