Deuter Streamer 3.0 Hydration system (2 l, transparent) - Next time you are off on a big tour, the Streamer 3.0 by Deuter should be an essential item in your backpack. Regular drinking keeps you fit for longer – no matter whether you are biking, hillwalking, trekking or mountaineering. Thanks to the hydration system you can also drink regularly without interrupting your activity.The Streamer 3.0 consists of polyethylene – the whole system is BPA-free and PFC-free. The big hydration system opening can not only be conveniently filled but also extremely easily cleaned. The hydration system therefore is and stays very hygienic – also thanks to the smooth surface. Due to the surface, which is as smooth as glass, the Streamer remains flavour-neutral, hygienic and easy to clean. The special Grunge Guard coating also helps cleanliness: it prevents the accumulation of bacteria in the hydration system.The Streamer 3.0 has a water stop closure that you can activate by turning it. You therefore have a leak-proof mouthpiece that also has a plug-on protective cap. Perfect!