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Mazama Sidestream
Hydration Pack

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Mazama’s Sidestream hydration waistpack lets you hydrate smoothly and easily on-the-fly.
Sidestream's self-storing drink tube allows you to hydrate in-stride without slowing down. Sidestream features a fill-in-pack, 45 oz. reservoir, large bore drink tube and our original high flow DesChutes Bite Valve.
Sidestream sits in the small of your back, close to your center-of-gravity for a comfortable, no bounce fit. You stay in balance and your fluid doesn't slosh.
(Available in the 2 colors shown above)


  • 45 oz.(1.3 Liter) fill in-pack reservoir
  • Gel pocket
  • Zippered accessory pocket
  • High flow, 360 degree bite valve
  • No BPA/PVC


  • Fluid capacity: 45oz (1.3 Liter)
  • Pack dimensions: 16 in. x 8 in. x 2.5 in.
  • Pack weight: 13 oz (empty)