Well as a paddler one is always useful, as a family backpacker, it makes washing and washing up much easier, and even when just collecting water it is the fastest way to gather and store a large amount of water for camp use.
Ideal also for trekking, depending on where you are, as you may have a fair way to walk to collect water and 15 litres may save you countless trips in the dark.
The fabric bucket that is made from a watertight material and has a reinforced rim to keep the shape a structure. Holds up to 15 litres of water and can be carried using the grab handles. Packs down small when not in use.
Waterproof, PU coated fabric with nylon grab handles Supplied with its own stuff sack