Stay hydrated on the move with the 2L Tesco hydration bladder. This blue plastic hydration bladder gives walkers, hikers and climbers the ability to drink easily without stopping. It's crucial that our bodies get the liquid they need, particularly during exercise and in hot weather. This internal bladder has a wide entry mouth that makes it easy to top up with liquid, and to clean. It comes with a flexible hose with a self-sealing bite valve that is ideal for drinking on the go.