Two retractable bottle holders leave room for your water bottle and travel mug, and pockets are plentiful here, as are organized compartments including a discreet one for passports and cash. Much like a freshly-waxed car, water will simply bead up when it hits the surface instead of being absorbed into it, and it can even be re-treated if the water starts to soak in after years of hard usage. The outside is crafted with textured waterproof nylon, and tightly sealing top zippers and lining keep your contents dry, even in a sudden downpour. Anything beyond that and you’ll start to feel it on long hauls or even short treks.Īesthetically, the look is smooth and clean, and fits in whether you’re wearing a business suit or swimsuit. Ideally, the best convertible backpacks shouldn’t weigh more than a few pounds. Smart and minimal packing can only take you so far though, if the bag itself is a deadweight. Weight: This convertible backpack is going to be carrying your most important things, and the weight can add up fast. Since a backpack is meant for leaving the indoors and getting outside, a good convertible backpack should be ready for whatever nature throws at it, and not need to be sheltered from the storm.

Weather: Water-resistant materials should be the minimum here too, especially if you’re taking your convertible bag outdoors. Thickly-padded walls add an extra layer of cushioning to important devices inside, and can stand up to being thrown around in transit too.

Material: This is where some backpack manufacturers go above and beyond, endlessly testing and selecting materials that’ll last a lifetime - not just against the elements, but for the general beating a bag can take.

Backpack pocketbook