1. Upgraded materialsMade of high density waterproof and Luxury carbon fiber material.Ergonomics mesh back design with breathable strap can relieves your shoulders of long carryon. 2. This small sling backpack is semi fixed bag and has large capacity. Only H13' L7' W3.9', 0.46KG/1.01lb. It's light weight ,waterproof and scratch resistant.It's a great choice for sports,camping,hiking,travel,working,biking,overnight trip and other occasions. 2 Ways adjustable shoulder strap to fit your body perfectly. 3. Functional SafeGood quality and durable code lock design, which can protect your personal things perfectly when you go outside.Hidden USB charing(Double ports ) port makes your phone easy to charge when you are outdoors and traveling. It provides a hidden pocket at the back to protect your wallet and valuables from being stolen. 4. Multi storage pocketsFront side pocket is convenient for various small items. Large compartment with inner small pockets is great for 9.7 inch tablet,camera,power bank,water bottle,Notebook,pens. Exclusive card pocket on the shoulder strap makes this chest bag thoughtful.