It is often the case that the simpler the piece of kit the more useful and dependable it is: a compass is more reliable than a GPS, the simplicity and cutting ability of a parang makes it superior to the less suited multifunctionality of a Leatherman, a basic hammock is better suited to the jungle than the most luxurious of tents…

One piece of kit I carry on my EDC (Every Day Carry) belt is such a simple and basic item and yet it is something that solves that important problem of how to carry more water when you have a cut-down EDC setup that doesn’t include large water bladders or extra water bottles.

This item is the Maxpedition Rollypolly dump bag and, in the video below, is a quick review of it and a demonstration of how it can be used to carry an extra 3 litres of water.