The Yukon Outfitters Surfside 35 L Dry Packbag is a waterproof backpack for adventuring in and around water or through wet weather. This bag loads from the top into a spacious main compartment, with three mesh zippered interior pockets to keep track of smaller items. Just roll the top at least three times, and your gear and layers inside stay dry. Externally, there are mesh water bottle pockets and an exterior pocket for quick-access items that don't need to stay dry.