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  • Reservoir features a rigid spine/handle that stabilizes the water load and makes it easy to slide the reservoir into the pack
  • Zippered hydration sleeve is easy to access
  • Rigid spine/handle and large mouth make filling and cleaning the reservoir a snap
  • BPA- and PVC-free reservoir does not retain tastes or odors and features AquaGuard™ antimicrobial formula to help prevent bacteria and mold
  • 180° pivoting on/off valve rotates in either direction for quick and easy flow control; magnetic sternum-strap buckle secures the bite valve when not in use
  • AirSpeed™ suspension incorporates a lightweight alloy frame and cross struts with a tensioned mesh back panel for support and flexibility
  • Biostretch™ harness is ventilated for cooling comfort; full hipbelt adds stability and load transfer
  • Panel-loading main compartment is spacious enough for a long day's worth of food, clothing and gear
  • Zippered top organizational pocket with key clip holds small items; zippered top pocket with soft lining helps keep sunglasses or other fragile items from getting scratched
  • Stretch-woven front shove-it pocket offers quick external storage and access; integrated patch holds a blinker light (sold separately)
  • Zippered side pockets, front pocket and hipbelt pockets carry small items within easy reach
  • Stow-on-the-Go™ system lets you attach or remove trekking poles without taking the pack off
  • The Osprey Manta 36 hydration pack features an integrated raincover that can be deployed quickly to keep contents dry


View all Osprey Daypacks

REI membership


Best Use Hiking
Frame Type Internal Frame
BPA Free Yes
Gear Capacity (L) 34 / 36 liter
Gear Capacity (cu. in.) 2,075 / 2,197 cubic inches
Weight 2 lbs. 4 oz. / 2 lbs. 6 oz.
Fits Torso 16 - 19 inches / 18 - 21 inches
Fits Waist/Hips 25 - 45 inches / 28 - 50 inches
Material(s) Nylon/polyester
Frame Material Metal alloy peripheral hoop/EVA backpanel
Number of Exterior Pockets 9 + main compartment
Hipbelt Yes
Bite Valve Shut-Off Switch Yes
Wide-Mouth Opening Yes
Raincover Included Yes
Dimensions 19 x 13 x 11 inches
Gender Men's
Liquid Capacity (fl. oz.) 100 fluid ounces
Liquid Capacity (L) 3 liter
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