Camelbak 34oz Zephyr Vest Hydration Backpack, Castlerock Grey/Black

A dream for ultra-long distance runners and fast-packers - designed to perform! Zephyr Vest is lightweight and engineered with body mapping for optimal ventilation. Equipped with smart organization and hydration at the ready with two 500ml/17oz Quick Stow flasks at the front of your vest for easy access. It's lightweight and maxed out with safety features. There's 11L of gear capacity including a secure cell phone pocket, built-in safety whistle, and attachment point for your trekking poles. Since you're always on the run, the ultra lightweight material is treated with Polygiene anti-microbial to keep bacteria at bay from one stretch to the next.