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This product is no longer available, but don't go just yet.


  • Lightweight AirScape™ back panel features ridge-molded foam with channels covered in mesh to allow airflow
  • Contoured shoulder straps feature breathable mesh and perforated foam to enhance breathability and comfort; stretch-mesh pocket and zip media pocket keep items close
  • Wide webbing waistbelt won't wander or wiggle, withstanding wallops while weaving wonderment without want along your waistline
  • Also of note, the waistbelt is removable and the mesh-backed hip wings, which are attached to the pack, feature zip pockets to stash small essentials
  • Main compartment features a clamshell-shape zipper, allowing you to fully access the compartment's contents; internal bungee system helps stabilize and secure items
  • Zippered internal sleeve secures the HydraForm™ 100 fl. oz. reservoir, which features an anatomically shaped plastic sheet between a layer of nylon and the reservoir
  • This design enables the reservoir to conform to your back's shape even when full, resulting in a precise, stable and comfortable fit
  • Quickly attach a helmet with the LidLock™ helmet clip; a bungee on the exterior of the pack allows easy adjustment of the LidLock feature
  • Alternatively, the padded front compression pocket can be used to secure a full-face helmet; body armor can be carried in the side mesh pockets or behind compression pocket
  • Quick-access top zippered pocket is lined with a soft, easy-to-clean heat-embossed fabric that helps keep sunglasses, goggles or other fragile items from getting scratched
  • The Osprey Zealot 16 hydration pack includes a tool roll, which has its own zip pocket at bottom of pack for easy mid-ride access to tools or pump; tool roll can be detached
  • Compression straps let you cinch down loads for jostle-free carrying
  • Reflective hits increase visibility in low light


View all Osprey Hydration Backpacks

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Best Use Mountain Biking
Frame Type Frameless
Gear Capacity (L) 14 / 16 liter
Gear Capacity (cu. in.) 854 / 976 cubic inches
Weight 1 lb. 15 oz. / 2 lbs. 2 oz.
Fits Torso <19 / 19+ inches
Fits Waist/Hips <33 / 33+ inches
Material(s) Nylon
Number of Exterior Pockets 8 + main compartment
Hipbelt Yes
Bite Valve Shut-Off Switch Yes
Wide-Mouth Opening Yes
Dimensions 20 x 11 x 10.25 inches
Gender Men's
Liquid Capacity (fl. oz.) 100 fluid ounces
Weight - Metric 0.87 / 0.95 kilogram
Liquid Capacity (L) 3 liter

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