Osprey Manta 24 Mens Hydration Backpack vs Osprey Siskin 8 Hydration Backpack

The main difference between the Osprey Manta 24 Mens Hydration Backpack and the Osprey Siskin 8 Hydration Backpack is that the Manta 24 Mens Hydration Backpack has Hip Belt / Waist Strap (Padded hip belt ) while the Siskin 8 Hydration Backpack does not.

Osprey Manta 24 Hydration Backpack Front View
Osprey Siskin 8 Hydration Backpack Front View
Specs Brand Osprey Osprey
Name Manta 24 Mens Hydration Backpack Siskin 8 Hydration Backpack
Category Hydration Hydration
Sub Category Hiking Outdoor
Capacity (L) 24L 8L
Dimensions (in) 22.0 x 14.2 x 11.8 18.5 x 8.5 x 6.9
Weight (lb) 2.9 1.2
Fabric 210D x 630D Nylon Dobby 900x600D Polyester
Color Black, Green 3 colors and patterns
Warranty Osprey Lifetime Warranty Osprey Lifetime Warranty
Release Date December 28, 2018 December 5, 2018
Rating 4.8 4.8
Price Under $175 Under $100
General Features Shoulder Straps Padded shoulder straps Adjustable shoulder straps
Sternum / Chest Straps Adjustable sternum strap with magnetic closure and bite valve attachment Adjustable sternum strap with magnetic valve
Hip Belt / Waist Strap Padded hip belt
Main Compartment Access Normal zipped access Full front zipped access
External Pockets 3 front pockets, 2 side pockets and 2 hip belt pockets Top zipped pocket
Internal Compartments Internal scratch-free slash pocket
Side Pockets Side pockets can fit water bottle and other accessories
Water Bottle Yes No
Handles Top grab handle Top grab handle
Loops and Attachments Trekking pole attachment, ice tool loop with bungee tie off LidLock helmet attachment, ;oop for blinky light attachment
Business & School Features Organizer Pocket Front pocket with internal organization
Travel Features Compression Straps External compression straps External compression straps
Hiking / Backpacking Features Back Panel Highly ventilated, 3D-tensioned open mesh AirSpeed backpanel Mesh-covered extra deep ridged foam with center air channel
Rain Cover Integrated raincover
Load Lifters Yes
Adjustable Length Torso Adjustable harness system
Hip Belt Pockets Yes
Trekking Pole Holders Yes
Reflective Safety Strips Reflective accent Reflective accent
Hydration Features Bladder Size Includes 2.5L LT reservoir Includes Osprey Hydraulics LT 2.5L reservoir by Hydrapak
Hydration Compatible Yes Yes

You're currently comparing the Manta 24 Mens Hydration Backpack by Osprey against the Siskin 8 Hydration Backpack by Osprey .


Osprey 's Manta 24 Mens Hydration Backpack is a Hydration backpack with Hiking features while Osprey 's Siskin 8 Hydration Backpack is a Hydration backpack with Outdoor features.

The Osprey Manta 24 Mens Hydration Backpack has a capacity of 24L (liters), weighs 2.9 pounds and it's dimensions in inches are 22.0 x 14.2 x 11.8. It's made of 210D x 630D Nylon Dobby and is available in Black, Green in comparison the Osprey Siskin 8 Hydration Backpack's capacity is 8L with a size of 18.5 x 8.5 x 6.9 inches. Constructed from 900x600D Polyester it weighs 1.2 pounds and is available in 3 colors and patterns.