Nestled in Bend, Oregon, surrounded by mountains. This is where Hydro Flask HQ designs and tests many of their excellent products. The design is simple but the technology is complex, entirely inspired by nature. Expect excellent insulative drinkware, keeping liquid cool or hot for many hours. Hydro Flask are also lashing out against single-use plastic bottles and have put out the call to RefillForGood, pushing for people to ditch plastic bottles entirely.