Product details 【Made of waterproof material】The anti-theft sling bag is also equiped with smooth zipper and code lock. Large size: 6.7L*3.1W*13.4H (inch)/17L*8W*34H (cm); Weight: approx. 0.5kg 【Safety Desgin】The sling bag can be carried as crossbody backpack or chest pack. Reflective stripes can reflect car light at night. Coded lock also provides safe solution for your important stuffs. 【Comfortabel Desgin】 USB charging port is convenient for charging your device for many occasions. Airflow padded back and padded adjustable shoulder strap comforts your back and shoulder. Carry-on direction can be adjusted with buckle. 【Structure】The small sling pack has 9 pockets in total. 1 main pocket for wallet, charger, small notebooks; 1 tablet layer; 2 pen holders; 1 small interior slip pocket; 1 inner zipper pocket; 1 back zipper pocket; 1 front zipper pocket; And 1 card pocket on shoulder strap. Waterproof Surface: The backpack is designed with a waterproof surface to protect your belongings from rain or accidental spills. It keeps your items dry and ensures that they stay safe even in wet conditions. USB Charging Port: This backpack comes with a built-in USB charging port, allowing you to conveniently charge your electronic devices on the go. Simply connect your power bank to the internal port and connect your device to the external USB port for hassle-free charging. Anti-Theft Back Pocket: The backpack is equipped with an anti-theft back pocket, located against your back when wearing the backpack. This hidden pocket provides extra security for your valuable belongings such as wallet, passport, or smartphone, as it is not easily accessible to others. Card Pocket: The shoulder strap of the backpack features a card pocket, which allows you to store small cards like your ID, transportation pass, or credit card for quick and easy access. This feature provides convenience and ensures that your important cards are easily reachable when needed. Adjustable Shoulder Strap: The backpack is designed with an adjustable shoulder strap to ensure a comfortable fit for users of different heights and body types. You can easily adjust the length of the strap to find the perfect position for carrying the backpack, reducing strain on your shoulders and back. Material: High quality Canvas, durable zippers Special shoulder strap card pocket and back zipper pocket provide safe but functional solution important small stuffs. Size: Messenger Bag: 6.7 x 3.1 x 13.54 inches; 15.2 Ounces