Camelbak mule hydration packthe iconic m.u.l.e is the perfect balance of cargo and hydration in a feature rich design. The m.u.l.e. Has a narrow profile that keeps it light and maneuverable even when it's fully loaded for aday of mountain biking. The latest version featurday of mountain biking. The latest version features a magnetic tube trap that snaps easily into place, so you can hydrate without taking your eyes off the trail.featuresmaterial 70d 210 d diamond ripstop nylon, 70d 140d block dobby nylontotal capacity 549 cu in 9l 3l reservoirpack only weight 1 lb 5 oz .61 kgback panel xv. Multi layer eva foam pods provide superior cross ventilation in a lightweight designharness independent suspension and slider sternum strapbelt removable 20mm .75 stabilitytorso length 16.5 in 42 cmcamelbak got your bak guarantee if we built it, we'll bak it with our lifetime guarantee.buy camelbak accessories from chain reaction cycles, the world's largest online bike store.