Travel John Solid Waste Collection bag is convenient, sanitary, discreet & compact & will help you avoid festival toilets. Each bag is a single user waste bag made from a biodegradable plastic bag with an extra wide opening for easy use & contains our revolutionary LIQSORB® polymer pouch that solidifies liquids instantly into a leak-proof, odorless, spillproof gel that is non-toxic & safe for disposal in any waste bin.