Osprey Sirrus 24 Womens Hiking Backpack vs Osprey Siskin 8 Hydration Backpack

The main difference between the Osprey Sirrus 24 Womens Hiking Backpack and the Osprey Siskin 8 Hydration Backpack is that the Sirrus 24 Womens Hiking Backpack has Hip Belt / Waist Strap (Hipbelt with pockets) while the Siskin 8 Hydration Backpack does not.

Osprey Sirrus 24 Womens Hiking Backpack Side View
Osprey Siskin 8 Hydration Backpack Front View
Specs Brand Osprey Osprey
Name Sirrus 24 Womens Hiking Backpack Siskin 8 Hydration Backpack
Category Womens Hydration
Sub Category Hiking Outdoor
Capacity (L) 24L 8L
Dimensions (in) 19.3 x 11.8 x 11.8 18.5 x 8.5 x 6.9
Weight (lb) 2.6 1.2
Fabric 210D Nylon Crosshatch 900x600D Polyester
Color 3 colors and patterns 3 colors and patterns
Warranty Osprey Lifetime Warranty Osprey Lifetime Warranty
Release Date July 27, 2016 December 5, 2018
Rating 4.7 4.8
Price Under $150 Under $100
General Features Shoulder Straps Adjustable shoulder straps Adjustable shoulder straps
Sternum / Chest Straps Adjustable sternum strap with safety whistle Adjustable sternum strap with magnetic valve
Hip Belt / Waist Strap Hipbelt with pockets
Main Compartment Access Normal zipped access Full front zipped access
External Pockets Large top panel zippered slash pocket and dual side stretch mesh pockets Top zipped pocket
Internal Compartments Internal scratch-free slash pocket
Side Pockets Side pockets can fit water bottle
Water Bottle Yes No
Handles Top grab handle Top grab handle
Loops and Attachments Stow-on-the-Go trekking pole attachment, ice tool loop with bungee tie-off LidLock helmet attachment, ;oop for blinky light attachment
Travel Features Compression Straps External compression straps External compression straps
Hiking / Backpacking Features Back Panel 3D tensioned breathable mesh backpanel Mesh-covered extra deep ridged foam with center air channel
Rain Cover Integrated raincover
Load Lifters Yes
Internal / External Frame LightWire alloy internal frame
Ventilated Back Yes
Adjustable Length Torso Multiple torso size options with torso adjustability
Hip Belt Pockets Yes
Trekking Pole Holders Yes
Reflective Safety Strips Reflective accent
Hydration Features Bladder Size Includes Osprey Hydraulics LT 2.5L reservoir by Hydrapak
Hydration Compatible Yes Yes

You're currently comparing the Sirrus 24 Womens Hiking Backpack by Osprey against the Siskin 8 Hydration Backpack by Osprey .


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

The Osprey Sirrus 24 Womens Hiking Backpack has a capacity of 24L (liters), weighs 2.6 pounds and it's dimensions in inches are 19.3 x 11.8 x 11.8. It's made of 210D Nylon Crosshatch and is available in 3 colors and patterns 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.