The Zygos 2.0 hydration pack is very versatile and Bryce Thatcher’s pack of choice. This pack is lightweight and high capacity, a comfortable wrap around style with full compression allow for the lowest profile empty or fully loaded. The Zygos 2.0 comes with a 2L reservoir and a magnetic clip to keep your hands free. Whether you are fast-packing, mountain biking, in a fast race, ultra race, or a summit assault this hydration backpack is the solution for any athlete. Available in three sizes for a more comfortable fit.