Specifications: Material: PU Leather, Polyester Optional Color: Black, Light Brown, Dark Brown Size (H*W*T): 34*17*8cm/13.4*6.7*3.15in, Can put into the mini iPad. Closure: Zipper, Buckle Style: Classic Occasion: Daily, travel, cycling, hiking and so on Features: 1. The Bag is made from Premium leather, with a long crossbody adjustable strap,smooth zipper. 2.The PU leather chest bag comes with a USB charging port and earphone hole, You can easily and conveniently charge your phone, tablet and other devices or listen to music with MP3 player ,without opening up the bag. 3.Multi wearing ways, as a crossbody chest bag, a crossbody backpack, a shoulder bag or a neck bag if you like. 4. Great option for outdoor use (walking,camping,shopping etc) and travel,daily life use as well. Fashionable,practical and multi-function design and comfortable to wear. How to Charge: 1.Connect the USB port on the bag externally. 2.Connect the power bank internally. 3.Connect your phone.