CamelBak Zephyr Pro Hydration Pack

The Zephyr Pro includes two 17 oz Quick Stow flasks, which are designed to sit in the front pockets for easy access. It does not include a rear reservoir, though the pack is designed primarily for this flask-based setup.

The pack features a dedicated, stowable quiver that attaches to the vest. This allows you to quickly deploy or stash your poles without needing to take the pack off, which is essential for maintaining momentum on technical trails.

Yes, it is constructed with N40D Ripstop nylon featuring a C0 DWR finish. While it is lightweight at 210g, the ripstop fabric is designed to handle the abrasion and snagging common in rugged, off-trail environments.

The pack includes a dedicated, secure smartphone pocket designed to accommodate most modern, larger-sized phones. It keeps the device accessible but stable against your body so it doesn't bounce while you run.

The vest uses dual adjustable sternum straps that allow you to customize the fit across your chest. Combined with the four-point compression system, you can cinch the pack down to prevent shifting, regardless of how full the 11L capacity is.

The vest uses body-mapped engineering knit mesh, which is significantly more breathable than standard fabrics. It is designed to maximize airflow across high-heat zones, helping to reduce sweat buildup during long, intense efforts.