Some people prefer to use a backpack, others like the simplicity of a briefcase, and some people like the hybrid look of a messenger bag. Others, at one point or another, could make use of all three. The proposed Phorce bag switches between these three form factors, and also packs a battery that allows it to charge most mobile devices via USB, and with a more costly option, it can even top up a MacBook.

The creators of what they describe as "the world's first smart bag," have developed two versions and are seeking funds via Kickstarter. The Phorce for USB features three USB ports for charging up to three devices simultaneously, while the Phorce for Mac adds a MagSafe cable for charging a MacBook. However, recharging a new MacBook Pro Retina will require a MagSafe to MagSafe2 adapter.

Both bag's pack a 54 Wh battery that the creators claim will charge an iPhone 5 eight times, an iPad Mini 2.5 times, or a Samsung Galaxy S III six times. It can also extend the battery of a 15-inch MacBook Pro by 4 hours. The image below breaks down the charging capabilities of the Phorce Bag.

The bag also features Bluetooth connectivity, so it can be tethered to a smartphone by way of the free Phorce app to alert you if you are about to leave it behind. The app, which is available for iOS and Android, also displays how much charge is left in the bag's battery and can be set up to send reminders to your phone when the battery is running low.

The strap system used on the Force bag allows it to become a messenger bag, a briefcase, or a backpack, depending on your style or requirements. The bag also has a 360-degree expansion zipper that opens to create over 240 cubic inches (4,000 cm3) of extra space.

Both versions of the bag weigh 3.7 lbs (1.7 kg) and measure 18 x 12 x 4 inches (46 x 30 x 10 cm). Both bags also feature a 10 x 15 inch (25 x 38 cm) laptop pocket that will hold most 14-inch Windows laptops and MacBooks up to 15 inches.

The creators of the Force bag are currently seeking funding on Kickstarter to turn the idea into a final product. If you want to back the project and receive a Phorce for USB bag, you can do so for US$199 if you get in before the early bird special ends. After that, it goes up to $219. If you want the Phorce for Mac bag, you will need to pledge $279 for early bird, and $299 thereafter.

The pitch video from the creators of the Phorce bag can be seen below.

Source: Phorce via Kickstarter

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