Premium Material: The chest bag is made of tear-resistant polyester material, reinforced backpack straps, scratch-resistant, dense and strong two-way metal zipper, precise stitching and latching technology.Large Capacity: 22x23x19cm. Enough to carry your necessary things like phones, keys, cards, tissue, wallet, snacks, MP3 and so on when you are cycling, running hiking, climbing,walking dog and ect.Multiple Pockets: This sling backpack has a unique design with 4 pockets to meet different needs.With Reflective Straps: This backpack chest bag with reflective straps makes you safe and worry-free, the pockets are designed at various angles for easy access to your items.Widely Application: Adjustable shoulder strap provides optimal comfort over your chest and shoulder. Suitable outdoor activities,such as running, traveling, camping, hiking, hunting, cycling, sports, school supplies, ect.