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Osprey Packs
Rev 1.5 Hydration Pack - 61-92cu in

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Crush races and trail workouts with this lightweight pack.

Stay hydrated while you're crushing trail races or daily workouts with the super light and streamlined Osprey Rev 1.5 Hydration Pack. Osprey entered the ultralight game this year with its Rev series, and the Rev 1.5 is the smallest of the lot. The backpack comes with an integrated, lightweight 1.5-liter reservoir that's specially designed to prevent water from sloshing around while you're bouncing up and down the trail, and the backpack itself is designed to fit snugly and follow your movements to prevent irritating jiggling and uncomfortable chafing.

Not just one, but two sternum straps keep the pack securely in place, and can be adjusted to your preferred position. One includes a magnet that conveniently holds the drinking tube's bite valve so you can quickly sip and then get the drinking tube out of the way. Two pockets—one on each shoulder strap—hold energy gels and your cell phone. The Rev 1.5 is designed to sit higher on your back, and it doesn't use a hip belt since the shoulder harness supports the weight of the pack. With the Rev 1.5 on your back, you won't ever have to worry about your hydration pack slowing you down during a race or fast-moving training session.


  • BioStretch harness system
  • Breathable mesh back panel
  • Zippered panel access
  • Front bungee panel
  • Built-in 1.5L Hydraulics LT reservoir
  • Water-resistant Digiflip media pocket
  • Reflective details
  • Harness pockets
  • Item #OSP006O
[main] 100D nylon, [accent, bottom] 70D x 100D nylon ripstop
[S/M] 61 cu in, [M/L] 92 cu in
Hydration Compatible
Reservoir Included
yes, 1.5L
front panel
2 harness, 1 slash, 1 media
15 x 8 x 4 in
Claimed Weight
[S/M] 10 oz, [M/L] 11 oz
Recommended Use
hiking & camping, running
Manufacturer Warranty