What Makes the Zephyr Vest the Best Running Pack?

The CamelBak Zephyr Vest is engineered for ultra-long distance runners and fast-packers who need capable hydration without the weight or bulk of a traditional pack. Body-mapped construction optimizes ventilation across your back and shoulders, while two front-mounted Quick Stow flasks keep water accessible without breaking stride. A secure cell phone pocket, built-in safety whistle, and trekking pole attachment point round out the safety and utility features that matter most on long efforts in the mountains.

At just 1L of storage capacity, the Zephyr Vest is built light on purpose, keeping you nimble and fast whether you are running a 50K or moving quickly through technical terrain. The ultra-lightweight fabric is treated with Polygiene antimicrobial technology to manage odor and bacteria across back-to-back use days. Sized for a women's-specific fit with a trim silhouette that stays put through technical descents and scrambling, this is the right vest for female athletes who prioritize speed and safety on extended efforts.