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