Flextail Flex Bucket 20L Folding Bucket (brun)Flextail Flex Bucket 20 L Folding Bucket (Brown) The Flextail Flex Bucket is a foldable, self supporting 20 liter outdoor bucket that allows for convenient transport and use of water in the field. The double layer PVC construction retains its shape when filled and remains leak proof even at high volumes, making the product ideal as a portable water container for camping or backpacking. The bucket folds flat, so it takes up minimal space in a backpack,