Large capacity: The size of this sling bag is about: 7.48”Lx3.93”Wx13.38”H (19x10x34 cm), and the longest shoulder strap is about 50 inches(128 cm). This bag is large enough for 9.7" iPad, wallet, cell phone, notebook, and other valuables. It can be served well as small travel sling bag, work bag, daypack, etc.
Waterproof material: This small backpack is made of waterproof PVC and high density polyester, water resistant and durable. Based on high quality material and SBS zipper, you can use this bag for a long time. The weight of this small backpack is about: 1.12 lb (0.51 kg).
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.
Air mesh padded design and adjustable shoulder strap: The back and shoulder straps of this backpack are well-padded, to minimize the discomfort of your shoulder or body caused by carrying heavy items constantly. The shoulder strap of this bag is also adjustable, you can adjust the length to fit your body, make your travel or daily use more comfortable.