1. USB charging port design: Two simple steps to charge your electronic devices: First, connect your own power bank(portable charger) with the built-in USB extension cable inside the chest bag. Second, make your external USB cable connect with the external USB charging port, and then it can charge your cell phone or other electronic devices. Notes: Not INCLUDING a power bank inside this bag.Business
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2. Air mesh padded design and adjustable shoulder strap: The back of this sling bag is used padded material that can make your body more comfortable. And you can also adjust the length of the shoulder strap to fit your body, make your trip or daily use more comfortable, easy to carry. It can be easily adjusted and will fit you well. 3. This sling bag perfects for hiking, kayaking, snorkeling, gym, cycling, bike riding, walking, traveling, amusement park and daily use. 4. This all-purposed sling bag also perfectly works as shoulder pack,chest bag,crossbody backpack and travel bag and keep your hands free.Modern fashion style and exquisite details make this sling bag matchable with any dress for men and women.