The Minimal Backpack is stronger than steel, floats on water

The Minimal Backpack is a roll top backpack, that's waterproof and packs down to fit into a jacket pocket. It is also featherweight and backcountry tough. Made with nonwoven Dyneema, it's 10x stronger than steel yet light enough to float on water. You can carry a whole lot of bricks in the bag! But mind your back.