We developed a 1.5-liter hydration pack called the K2 Hydration Pak to keep everyday workers, sports and outdoor enthusiasts stay hydrated longer. The K2 Hydro Pak is a hydration system that can be worn comfortably for the entire day to provide a portable means of fluid replenishment. When workers are adequately hydrated, they are healthier, safer, and more productive no matter what the weather or working conditions are.