Its polyester casing will keep your laptop and computer dry during the rainy season. In addition, it is light and comfortable.
The battery is in your hands right:
Connect your Power to the internal cable of your backpack, and then connect your smartphone or tablet to an external USB port. This way, you can charge your device without having to keep the battery in your hand, and it's also less likely to be stolen.
(Excluding any additional phone accessories, audio phones, batteries, etc.)
Comfortable, breathable, and sweat absorbing:
The shoulder strap adopts a honeycomb structure, which is comfortable, breathable, and sweat-absorbing. Wide shoulder straps reduce shoulder pressure. Ergonomic back pads provide comfort even under prolonged heavy loads