【Specifications】Size: 26-62cm Adjustable 【Material】Nylon 【Color】Black New, unused -------------------------------------------------- 【Chest Balance Stability Belt】 By using this chest strap, you can eliminate the gap between the shoulder straps and the chest, making the back of the backpack adhere more closely to your back, increasing stability, and distributing the weight load on your shoulders, back, and waist in a balanced manner, relieving fatigue in your shoulders and waist. You'll feel like your heavy backpack is lighter, making it easier to carry! Backpacks can hold a lot of luggage, so you tend to pack them full, right? Have you ever felt, "Oh, it's surprisingly heavy..." when you put it on? This chest strap allows you to attach the backpack snugly to your body, as if it has become a part of you! By attaching it to your backpack, it prevents the shoulder straps from slipping off and prevents swaying, so you don't have to hold the shoulder straps with your hands, freeing up your hands and increasing freedom of movement and safety while walking. 【Convenient and Easy-to-Use D-Ring】 The belt has a D-shaped ring, so you can hang small items during outdoor activities or travel, freeing up your hands and increasing stability while walking. Putting sunglasses or a camera in your backpack makes it really troublesome to take them out, right? In such cases, if you hang them on the D-ring hook, you can quickly use them when the cloudy sky suddenly clears up, or when you are faced with a breathtaking view that makes you want to exclaim! 【Easy to Attach】 Applicable to adults and children, with a one-touch detachable buckle and adjustable function, it is easy to put on and take off, and even elementary school students can use it. Non-stretching material for long-term use. The band is designed not to stretch even when pulled. Unlike other companies' products that use rubber materials, we have improved the point that the rubber stretches and contracts while walking, which impairs the sense of adhesion. There is also no lifespan for the rubber, so you can use it for a long time.