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Osprey Siskin 8 Men's Hydration Pack

$99.99 Model 34041

When a pack that holds only water is too small and a pack that holds everything is too big, the Siskin 8 is just right

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Carry what you need in the Siskin

A high-performing mountain biking pack that provides stability and comfort on the gnarliest of trails, the Siskin allows you to bring just what you need (and nothing more) on your ride.

A direct-access zip path leads to an included reservoir, and a U-zip main compartment opens wide to stuff a spare tube, flat repair tools, and your PB&J inside.

Product details

  1. Multi-pocketed tool organization and large bucket main compartment
  2. LidLock helmet carry for traditional helmets and front compression straps for full face helmets
  3. Rolled, soft-edged harness contours to shoulders to keep pack close and provide stability
  4. AirScape back panel and suspension combine ventilation and even load distribution
  5. Zippered sleeve accesses included 2.5L (84.5oz) reservoir
  6. Magnetic sternum strap bite valve attachment
  7. Internal scratch-free, heat-embossed slash pocket

More options


Cargo capacity 470 cu in (8L)
Bag type Hydration packs
Dimensions 17.5cm (l) x 21.5cm (w) x 47cm (h)
Attachment On the body
Fiber content 100% Polyester
Material Woven
Weight 525g
We reserve the right to make changes to the product information contained on this site at any time without notice, including with respect to equipment, specifications, models, colors, and materials.
Weights are based off Trek pre-production products at time of publication. Weights may vary in final production.

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