Osprey Packs Manta 20 Hydration Pack


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Revolutionize the way you think about your hydration needs in your adventure pursuits Osprey has designed the new Osprey Hydraluics system in the Manta series for multi-sport adventures. A smaller light hiking pack, the Osprey Manta 25 Hydration Pack features two zippered side access slash pockets and two stretch woven side pockets with InsideOut&trad; compression. The small/medium is 1100 cu. In and the medium/large is 1200 cu in. The Manta Series features Osprey’s BioStretch harness with elastic sternum strap and built-in magnet for quick bite valve attachment .The BioStretch hipbelt features zippered side pockets and a modified straight ErgoPull&trad; closure. Both are made with stretchable materials that allow free body motion with minimal pack bounce. A peripheral LightWire&trad; frame supports a ventilative mesh backpanel with AirScape&trad; ridge foam providing further comfort and stability.


  • Large front zippered pocket
  • 2X stretch woven side pockets
  • Helmet attachment daisy
  • Front stretch woven pocket
  • Stretch woven pockets with inside out &trad; compression
  • Upper compression straps
  • Integrated rain cover
  • Ventilative mesh backpannel
  • Stow on the go &trad; trekking pole attachment
  • Zippered fabric hipbelt pockets
  • Safety blinker patch
  • Full elastic stretch sternum strap
  • magnetic sternum buckle
  • 3 Liter reservoir included
  • Cubic inches: s/m 1000 m/l 1200
  • Liters:s/m 17 m/l 20
  • Weight* (does not include resevoir weight):s/m 2lb m/l2lb 3oz
  • Resevoir weight: 9oz
  • Integrated raincover

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Review Summary

5 out of 5

3 Reviews

  • Build quality: 2
  • Ease of use: 2
  • Great design: 2
  • Performance: 2

  • Cost: 2
Durability: 5 / 5
Quality: 5 / 5
Weight: 1 / 5

3 Ratings & Reviews

unbelieveble good piece of equipment
August 07, 2010

lightweight, technical, holds even more than you need for short hikes, extremely convenient

Durability: 5 / 5
Quality: 5 / 5
Weight: 1 / 5
from NH
18-24 yrs

April 24, 2011

Have no complaint's what so ever. This pack is very well designed. Mostly use it for light day treks. I was very surprised how much I could actually fit in the pack. Can't beat the design and quality of Osprey packs. Love it!

Pros: Great design, Build quality, Performance, Ease of use, Cons: Cost
Durability: 5 / 5
Quality: 5 / 5
from San Francisco, CA
25-34 yrs

Tons of technical details, fits like a glove.
November 17, 2010

Just got the pack today, thanks to Altrec for fast shipping and great sale price. I've owned a number of packs and until now my Dakine Heli Pro pack has been my favorite. This pack may take that honor. It's so well thought-out. After unpacking the Osprey Manta, I'm blown away by the technical features of the pack: the fabric choices in different places; the various places to attach things like keys, helmet, trekking poles; the padding; the wide shoulder and waist straps, the zipper pulls. Love that it comes with a high-capacity/quality bladder and bite piece with magnetic binder on the chest strap. Love that it has a secret compartment on the bottom to stow the included rain cover. Comes with an instruction flyer that goes over all of the features of the pack. I put some stuff in it and adjusted it for my fit in a few minutes. I'll have to get it out for some rides this (rainy) weekend before I can render final judgement regarding fit, but so far I'm very impressed. If you geek out on quality gear like I do, you're not going to be disappointed with this pack. It's not cheap, but seems very worth it.

Pros: Great design, Build quality, Performance, Ease of use, Great value, Cons: Cost

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Osprey Packs Manta 20 Hydration Pack Photo

Radiant Red, Silt Grey and Tahoe Blue.

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