These water reservoirs from HydraPak have a smart design for peak performance. A Slide-Seal top opens wide for easy filling and closes tight for a leak-proof seal. The High-flow Blaster bite-valve also closes tight after each sip, and when not in use twist the valve to close. The shapeshift 2- and 3-liter reservoirs can be turned inside out for easy cleaning, frozen for cold hydration down the trail, and they can also hold hot water. These versatile bladders are a must-have for the outdoor enthusiasts who like to have a reservoir on their back while hitting the trails or even commuting to work on a bike. Take a Shapeshift with you on your next adventure up to Bishop Pass!