Thule Vital Hydration Packs help you to get the most out of every mountain bike ride with a hands-free hydration system, optimal weight distribution and innovative pockets designed to access gear without slowing down. Each backpack comes with an included HydraPak reservoir plus plenty of storage for extra food, clothing and tools. Choose from the 3L, 6L or 8L mtb hydration pack to stay hydrated on quick rides or all day on the trail. Stay cool and comfortable on your any ride thanks to lightweight, ventilated materials. Push yourself further with a Thule Vital mountain biking pack.