- The Hydro Flask Journey Series hydration pack is designed to hold three liters of water and keep it cold for up to four hours in an insulated reservoir and sleeve. It also has a side pocket for small essentials.
- Starting at $165, the backpack is designed with a modeled mesh back panel aimed to stop body heat transfer but still allow air to flow between your back and the hydration pack.
- I used the 10 L Hydro Pack recently to hike more than seven miles through the Rocky Mountains. My water remained cold the whole day, read more >>>
Source : BusinessInsider.Com