Features: 1. SPACIOUS SLING BAG - The size of this crossbody sling bag is 7 x 3 x 11 inches, which meets your needs for accommodating and organizing daily items. The main compartment with separated pockets fits book, wallet, umbrella, keys, power bank, tablet, 7.9inch iPad, e-reader, etc.; Front pocket holds small things; Effectively take necessities all in one sling backpack 2. USB CHARGING PORT - This crossbody sling backpack comes with a usb charging port for charging electronic devices via connecting your own power bank. You can charge your devices hands-free on the go at anywhere and anytime during walking, gym, sport, hiking, cycling, travel, outdoor activities and daily use 3. WATERPROOF SLING BAG - The sling backpack is made of water-repellent and scratch-resistant material that provides lasting durability and anti-drizzle function. 4. IDEAL APPLICATIONS - Made of high-quality material, this shoulder sling backpack for men and women can be used as a sling chest pack, travel sling bag, shoulder sling bag and sling backpack purse. Perfect for college, school, travel, sports, etc. A surprising gift for boyfriend, husband, male friends, families on special days and festivals. Specification: Color: Black/Gray/Black&Gold (Optional) Structure: main bag Material: Nylon Dimensions: 7 x 3 x 11 inch (18 x 8 x 28 cm) Types: sling bag Occasions: Work,Casual,Travel