The CamelBak Circuit(TM) Run Vest is built for trail runners and endurance athletes who view the journey as the destination. Lightweight and breathable, this hydration vest delivers airflow, storage, and hydration without unnecessary bulk. Engineered with 3D vent mesh for enhanced breathability and dual adjustable sternum straps for a secure, customizable fit, it keeps you comfortable mile after mile. Key Features 3D vent mesh maximizes airflow and comfort Secure phone pocket keeps essentials close Dual adjustable chest straps for customizable fit Tube Trap allows easy access to hydration tube Cargo pockets for fuel, gear, and essentials Trekking pole attachment for technical terrain Reflective accents for low-light visibility Integrated safety whistle Includes CruxA(R) reservoir for steady hydration flow Technical Specifications Dimensions: 35 cm x 11 cm x 21 cm Weight: 170 g Hydration: CruxA(R) reservoir included Care Instructions Hand wash with mild detergent Air dry Do not bleach or iron