Love to travel? Save big on these innovative duffel bags, backpacks, and suitcases.

A good bag should be functional and hold all your things, but these days, bags do all sorts of helpful stuff. From acting as a portable closet to charging your phone, here are six great bags that go above and beyond the call of duty — and as a bonus, they’re all on sale.

1. This backpack with a built-in battery

Image: Solgaard Design

Have you ever wished that your backpack could magically charge your devices for you? Good news: the Lifepack Solar Powered and Anti-Theft Backpack does exactly that. Just plug any of your devices into the backpack’s built-in battery and charge away. Best of all, the battery is solar-powered and automatically charges whenever your bag is exposed to sunlight. It also features a built-in lock, so you don’t have to worry about someone walking off with your prized possessions. Read more…

More about Travel, Luggage, Baggage, Mashable Shopping, and Shopping List