The name says it all: the Classic is the quintessential bike hydration pack, now updated with a Crux reservoir for a faster flow of water. The brand new Crux delivers 20% more water per sip, with an ergonomic handle for easier refilling, and an on/off lever that makes it easy to prevent leaks. The pack also features reflective accents for visibility in low-light environments, a secure zippered pocket for essentials, and a lightweight, ventilated mesh harness. Color: Black/Graphite