Quick-start your run without the bulk with the Nathan QuickStart 3.0 4L Hydration Vest. Streamlined for a natural running experience, this minimalist running vest allows you to focus on your performance without distractions. Adjustable sternum straps keep the vest secure against your chest, while wide side straps create a no-bounce fit for added stability. Made from soft, durable, and quick-drying materials, it keeps you cool and comfortable during long runs or intense workouts. For storage, a large back compartment includes a separate hydration bladder sleeve with Velcro straps to hold it in place, plus an expandable main pocket for extra gear. Reflective detailing enhances visibility during low-light conditions, making it ideal for early morning or evening runs.