CrankBrothers Descender hydration pack£99.99

Spacious pack

BikeRadar score3/5

The Descender is the biggest pack in CrankBrothers’ line-up, and has a gear-swallowing 20-litre capacity. There’s a large main pocket, which features numerous stash compartments and a completely separate tool pouch to ensure you keep everything tucked away safely.

There’s a massive cradle-type pocket that’s big enough to hold a helmet with a useful bungy cord on the front. There’s also a small, soft-lined upper pocket to keep your glasses or touch-screen phone in. 

The bladder sits completely separately, in its own zipped pocket just forward of the back padding, where it’s suspended on two clips. Getting it in when it’s full is quite tricky because the opening isn’t massive, but that’s the biggest niggle here.

There’s masses of adjustment in the shoulder, chest and waist straps, and plenty of support, with little movement around your back when fully loaded. The back panel, although not the airiest, is comfortable and never hindered long days in the saddle.

The sealing system on the bladder may not be the tidiest out there but it proved to be leak-free and we like the on/off valve on the drinking tube. The button-style bite valve delivered a good flow of water but was trickier to actuate than other systems when we were really breathing hard. 

CrankBrothers descender hydration pack:

This article was originally published in Mountain Biking UK magazine.

Rob Weaver

Technical Editor-in-Chief, Tech Hub, UK
Rob started riding mountain bikes seriously in 1993 racing cross-country, though quickly moved to downhill. He raced World Cups. He now spends most of his time riding trail bikes up and down hills. Occasionally he'll jump into an enduro race.
  • Age: 33
  • Height: 172cm / 5'8"
  • Weight: 68kg / 150lb
  • Discipline: Mountain
  • Preferred Terrain: Natural trails where the loam fills my shoes on each and every turn
  • Beer of Choice: Guinness

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