Mountain bikers and hikers alike crave the flexibility of the Blowfish, which offers a performance fit, expandable cargo space and a voluminous reservoir.

• Unzip the storage compartment and it becomes a 3-season pack; zip it closed and it's a super-stable, low-profile summer system
• Air Director™ ventilated backpanel with Air Mesh shoulder harness enhances cooling airflow
• Slider SternumStrap™ lets you adjust the location of the strap up or down for a customized fit
• Features a removable waistbelt and strap management system to secure loose webbing
• OMEGA™ HydroTanium™ wide-mouth reservoir is built with a rugged polyurethane film for tensile strength and burst resistance
• Taste-free, polyethylene-lined tubing; popular bite valve has a separate on/off switch to eliminate leaks during transport
• Big Bite™ valve is ergonomically positioned for easy drinking; handy HydroLock™ securely shuts off water flow