Camelbak mule lr hydration packthe mule lr hydration pack is camelbaks iconic and versatile mtb pack designed to give you the low rider advantage it combines the storage and features of their treasured mule hydration pack with a lumbar design that offers more stability during aggressive downhill rides instead of focusing pack weight on your shoulders the pack shifts the load to your hips for a lower centre of gravity and more freedom of movement the hydration pack features a 3l crux reservoir