Leave your hydration bladder/reservoir at home! The One Bottle Hydration System adds a convenient 43 inch drinking tube and bite valve to your wide-mouth Nalgene, Hydro Flask, Takeya/ThermoFlask, and many other bottles*.

You get the convenience of a hydration bladder/reservoir system with the versatility of your favorite bottle, without any of the awkward filling/plastic taste/mold buildup. When you're done hiking you can remove the bottle from your pack and keep hydrating with the convenient flip-top and spout lid!

The adapter can be removed from the flip-top lid and fitted to any 28mm Smartwater or soda/premium water bottle for maximum flexibility!

This unique patented design is much simpler and more reliable than other competitors - it uses a single tube to adjust to almost any bottle, pack, or hiker - and is compatible with standard hydration system parts. You could buy tubing from the hardware store!

Choose the world's first ever silicone tube to reduce your plastic exposure! Over 5,000 customers have taken the One Bottle System up and down the Triple Crown trails in the US, all over Europe (including the Camino de Santiago) and Australia. Check for your bottle's compatibility and learn much more on the website, and don't hesitate to reach out!


Comes with additional gasket to correct fit for some Hydro Flask models

*Bottle not included. Pictures show One Bottle system fitted to with compatible bottles.