<p>Easily hydrate on-the-go with 5157 Premium Cargo Hydration Pack. It carries 3 liters of instantly accessible water. Safe, clean hydration is possible with the antimicrobial bite valve and cover protecting against contaminants. Water remains cool in heat with insulated pack and tube. Filling the bladder is painless with the wide, dual-cap opening that prevents spills. Vented straps increase airflow. Thermoplastic bladder protects against wear and tear. Storm drain keeps pack dry. Wear the pack on your shoulders for hours thanks to the lightweight material. Hook-and-loop shoulder straps that safely detach prevent snagging. Reflective accents provide enhanced visibility. Additional storage consists of a large bladder compartment, large middle compartment with accessory slots, two zippered pockets and two mesh pockets on sides for water bottles. Top handle provides easy transport and hanging storage. Pack is compatible with the Chill-Its 5159 Hydration Cleaning Kit (not included).</p>