When safety and visibility come first, the Hi-Viz™ is your answer. The Hi-Viz includes all the trusted features you've come to expect from CamelBak in two high visibility colors to keep you safe on the job. The externally accessed 2.5L, 85oz Mil-Spec Crux Reservoir delivers 25% more water per sip, and the tear-away harness keeps you safe even in the most critical situations.