Platypus - Hoser 2019, hydration bag


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Platypus - Hoser version 2019

Ultra-light, minimalist hydration bag, without flavor contamination and with high flow rate.

The original Platypus® water tank that has become a classic of mountain adventures. The Hoser ™ is an ultralight and minimalist hydration system that offers tasteless hydration with a versatile and resistant design that makes it ideal for backpack, prolonged excursions and day excursions. Updates for 2019 include a new self-sealing HyFLO ™ bite valve that offers a 30% increase in flow rate, making hydration on the move faster and easier.


  • Drink without stopping: the new HyFLO simple, one-piece and self-sealing bite valve makes hands-free hydration faster and easier than ever with a flow rate increased by 30%
  • Easily transportable: the integrated transport hook facilitates fixing the tank in a backpack or elsewhere.
  • Pure Platy experience: all materials are certified to not alter the flavor, without BPA, without BPS and without phthalates.
  • Without contamination: the silver ion treatment protects the tank from mold and bacteria.
  • Versatile: Threaded port and 1/4 "diameter drink tube make it easily compatible with accessory caps and adapters.
  • Versatile: the threaded connection and the standard 1/4 "diameter measuring tube make it easily compatible with accessory caps and adapters.

Technical specifications:

Capacity1 litre1.8 liters2 liters3 liters
Weight91 g97 g102 g109 g
Width13.5 cm17 cm15 cm18 cm
Length29 cm29 cm40.5 cm42 cm
MaterialPolyurethane / PolyethylenePolyurethane / PolyethylenePolyurethane / PolyethylenePolyurethane / Polyethylene
Tube materialPolyurethanePolyurethanePolyurethanePolyurethane
Valve materialSiliconeSiliconeSiliconeSilicone
  • Campi for Use: All mountaineering disciplines


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