Hydrapak Jolla Review

Hydration

Reversible Reservoir II
The intriguing Hydrapak bladder system, named the Reversible Reservoir II is a variant of what rafters and kayakers use for dry bags. I have used dry bags for many years on the river as a kayaker, and they are a great tool and very functional. Of course they were meant to keep water out and not water in! The Hydrapak bladder is a nifty system that uses a plastic slider closure (the “Slide Seal”) for the top of the unit, and it allows easy fillings since the entire top opens wide. The Jolla that I tested came with their largest sized reservoir, with a capacity of 100 fl oz/3L. All the reservoir components (bladder, tube, bite valve) are made with FDA approved BPA Free TPU, which means no Bisphenol A (BPA), within the Thermoplastic Polyurethane (TPU) material.

It can be turned inside out, which is a great feature that makes the cleaning and drying tasks a breeze, and it helps keep the dreaded funk from happening! It has a quick connector which they call Plug N Play that attaches or detaches the drinking hose, so it makes it easy to take the bladder out of the pack for cleaning and filling. Their reservoirs are being used in a few competitor packs, which is a great vouch for their innovation and functionality. I think Camelbak felt some of the competition from Hydrapak (?), as they just released the greatly improved Antidote reservoir, which does have an easier to use disconnect system, though it’s still tougher to clean and fill.

The reservoir compartment is accessed on the upper back side of the pack. The zipper that opens the compartment has an excellent length, and the opening is large enough, so it’s easy to extract and insert the reservoir. The reservoirs little attachment clip is a royal pain to un-clip from the packs hanging strap, and I much preferred their original quick connector buckle system from their older versions.

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About the author: Brian Mullin

Brian has been part of the Mtbr team since 2007, where he has become an integral member of the review and test staff, specializing in technical articles. He likes to push the limits in all the sports he obsesses in, whether it's mountain biking, whitewater kayaking, extreme skiing, or sport climbing. He takes those same strengths and a good dose of insanity to his reviewing and writing on mountain biking products, creating technical, in-depth and hyperbolic articles. Whenever he's not on the bike, he might be found watching MotoGP racing, otherwise look for him out on extremely technical singletrack.


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