The main difference between the Osprey Siskin 8 Hydration Backpack and the Osprey Sirrus 24 Womens Hiking Backpack is that the Siskin 8 Hydration Backpack has Internal Compartments (Internal scratch-free slash pocket) while the Sirrus 24 Womens Hiking Backpack does not.
Specs | Brand | Osprey | Osprey |
Name | Siskin 8 Hydration Backpack | Sirrus 24 Womens Hiking Backpack | |
Category | Hydration | Womens | |
Sub Category | Outdoor | Hiking | |
Capacity (L) | 8L | 24L | |
Dimensions (in) | 18.5 x 8.5 x 6.9 | 19.3 x 11.8 x 11.8 | |
Weight (lb) | 1.2 | 2.6 | |
Fabric | 900x600D Polyester | 210D Nylon Crosshatch | |
Color | 3 colors and patterns | 3 colors and patterns | |
Warranty | Osprey Lifetime Warranty | Osprey Lifetime Warranty | |
Release Date | December 5, 2018 | July 27, 2016 | |
Rating | 4.8 | 4.7 | |
Price | Under $100 | Under $150 | |
General Features | Shoulder Straps | Adjustable shoulder straps | Adjustable shoulder straps |
Sternum / Chest Straps | Adjustable sternum strap with magnetic valve | Adjustable sternum strap with safety whistle | |
Hip Belt / Waist Strap | Hipbelt with pockets | ||
Main Compartment Access | Full front zipped access | Normal zipped access | |
External Pockets | Top zipped pocket | Large top panel zippered slash pocket and dual side stretch mesh pockets | |
Internal Compartments | Internal scratch-free slash pocket | ||
Side Pockets | Side pockets can fit water bottle | ||
Water Bottle | No | Yes | |
Handles | Top grab handle | Top grab handle | |
Loops and Attachments | LidLock helmet attachment, ;oop for blinky light attachment | Stow-on-the-Go trekking pole attachment, ice tool loop with bungee tie-off | |
Travel Features | Compression Straps | External compression straps | External compression straps |
Hiking / Backpacking Features | Back Panel | Mesh-covered extra deep ridged foam with center air channel | 3D tensioned breathable mesh backpanel |
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 |
Osprey 's Siskin 8 Hydration Backpack is a Hydration backpack with Outdoor features while Osprey's Sirrus 24 Womens Hiking Backpack is a Womens backpack with Hiking features.
The Osprey Siskin 8 Hydration Backpack has a capacity of 8L (liters), weighs 1.2 pounds and it's dimensions in inches are 18.5 x 8.5 x 6.9. It's made of 900x600D Polyester and is available in 3 colors and patterns in comparison the Osprey Sirrus 24 Womens Hiking Backpack's capacity is 24L with a size of 19.3 x 11.8 x 11.8 inches. Constructed from 210D Nylon Crosshatch it weighs 2.6 pounds and is available in 3 colors and patterns.
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