Our expedition bag is as bulletproof as a bag can get! Made from PVC material with a reinforced bottom, this waterproof bag allows you to store a wet thermal protection or other items after a dive. It can also be used to store your dry clothes in it on a wet boat deck. The bag has backpack straps so you can carry it as such, and also handles that allow you to carry it like a normal gear bag. There are additional fastex straps on the side to tighten the bag down when it is not filled to maximum size. There is also a zippered waterproof compartment on the inside of the opening flap so you can keep dry and wet items separated in the same bag.