Let's face it: owning a different bag for every possible travel or adventure situation can get a bit cumbersome. But not every bag is suited to every scenario. Enter the Tessel Anti-Gravity Pack System — this modular backpack allows you to customize your bag at will, making it suitable for everything from a weekend trip, to a day hike, to your commute to the office. It uses magnets to allow you to add on backpack components as you need them, leaving behind everything you don't. And with coated fabrics and zippers, it's also pretty resilient against the elements. What more could you want?