K2 squeezed every high-performance feature they could into the 2001 Hydropack Ultra and came out with an incredible pack. The Comfort Fit™ design reinforced with an internal flex-frame maximizes the fit and function of the pack while keeping the 100 plus cubic inches of gear-swallowing capacity under control.
K2's CrystalClear 106oz / 3 litre reservoir
1000ci/ 16.3 litres of storage in 5 pockets
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