A 58 quart portable dry storage bag.

A dry bag is the answer to gear stored where weather gets at it — an open bed, a roof rack, a trailer. IPX6 rated, so it keeps out driving rain and dust rather than just a light shower.

Rugged nylon straps with ballistic buckles, an air release valve so you can compress it down once it is packed, and an integrated pouch for the small personal items that otherwise get lost in the bottom.

The middle size, and the one most people find themselves reaching for — enough for bedding and clothing for two without becoming awkward to carry when full.