The Vaya backpack is by far one of our most comfortable bags for heavier loads. It is a life saver for those of us that prefer the weight evenly distributed across both shoulders. Like our other bags it is completely waterproof, and even has a pocket that can fit up to a 15" computer. It has padded straps that provide supreme comfort even with large loads. For all you backpack lovers out there, we think you will add this bag to the top of your list!