Ultimate Direction ADVENTURE 17L Hydration Vest

What Our Gearhead® Experts Are Saying:"When I’m heading out for a long day on the trail—or even a multi-day fastpack—the Adventure Vest 17L is the only vest I trust. The fit is secure without being restrictive, and the amount of organized storage is wild. I can stash bottles, a reservoir, layers, food, and still have room to spare. The new wraparound fit feels locked in but comfortable, even when fully loaded."For unsupported long runs, backcountry loops, or fastest-known-time pursuits, the Ultimate Direction Adventure Vest 17L Hydration Vest is the piece we grab when we need to carry everything—without sacrificing speed or stability. Designed with input from elite ultrarunners and endurance athletes, this vest offers the most storage of any Ultimate Direction running vest, with an updated, body-wrapping fit that moves with you and stays bounce-free no matter how much you're hauling. The 17L volume includes thoughtful pocket placement from front to back: dual Hydrapak 500mL bottles ride up front (included), while large stretch and zippered compartments throughout the vest hold snacks, layers, trekking poles, and even bulky gear. The back panel includes a reservoir-compatible sleeve, water-resistant zip pockets, and quick-access stash options for puffy layers or rain shells. A new monomesh liner keeps airflow high and weight low, so you're ready to tackle big objectives with confidence.