New from Hydro Flask is a series of insulated hydration packs they are calling the Journey Series. If you have ever had your hydration pack out for many hours only to have the water inside heat up to almost undrinkable temperatures, this is the solution you’ve been waiting for. An innovative insulated reservoir and neoprene sleeve with a reflective lining inside the pack make sure your water is going to stay ice cold for over 4 hours. Testers found the insulation to work quite well from long hikes in the red rock desert of Moab, Utah to the sun-exposed single track on Colorado’s Front Range mountain bike trails. After many miles and hours, the water stayed cold and was a welcome refreshment along the trail.