evo.com | CamelBak Hydration Packs > The CamelBak M.U.L.E. 12 100oz Hydration Pack is a trail-tested classic, designed with smart storage and sustainable materials to keep you riding longer and cooler. With a 3L Crux reservoir, breathable Air Support(TM) back panel, and integrated helmet and gear carry, it's built for all-day adventures where hydration and comfort are key. Air Support(TM) Back Panel Designed with Body Mapping Technology to allow for maximum airflow on the hottest parts of your back. Crux 3L Lumbar Reservoir with Quicklink System The Crux(R) Reservoir delivers 20% more water per sip, with an ergonomic handle for easier refilling and an on/off lever to prevent leaks. Helmet Carry Stow and secure helmet 18.5 x 8.27 x 2.48 in / 47 x 21 x 6.3 cm Sustainable Nylon | CamelBak M.U.L.E. 12 100oz Hydration Pack 2025 - in Blue | Nylon