THE Camel Bak classic mountain bike pack, the M.U.L.E. has seen further development & is better than ever. The same slimline, pedal-friendly concept, but with a few years more experience under its belt, it's been given some more Camel Bak polish. The vented XV backpanel has cross channels for superior airflow, the Antidote 3 litre reservoir has stacks of features to make it easy to stay hydrated with minimum hassle, & the bag itself is laid out with organizer pockets for tools & media, as well as great compression & helmet storage.