Osprey Siskin 8 Hydration Backpack vs Osprey Rook 65 Men's Backpacking Backpack

The main difference between the Osprey Siskin 8 Hydration Backpack and the Osprey Rook 65 Men's Backpacking Backpack is that the Siskin 8 Hydration Backpack has Internal Compartments (Internal scratch-free slash pocket) while the Rook 65 Men's Backpacking Backpack does not.

Osprey Siskin 8 Hydration Backpack Front View
Osprey Rook 65 Men's Backpacking Backpack Front View
Specs Brand Osprey Osprey
Name Siskin 8 Hydration Backpack Rook 65 Men's Backpacking Backpack
Category Hydration Backpacking
Sub Category Outdoor Mens
Capacity (L) 8L 65L
Dimensions (in) 18.5 x 8.5 x 6.9 29.1 x 16.3 x 14.2
Weight (lb) 1.2 3.5
Fabric 900x600D Polyester 600D Polyester
Color 3 colors and patterns 3 colors and patterns
Warranty Osprey Lifetime Warranty Osprey Lifetime Warranty
Release Date December 5, 2018 February 2, 2019
Rating 4.8 4.8
Price Under $100 Under $175
General Features Shoulder Straps Adjustable shoulder straps Soft edgeless padded mesh shoulder straps
Sternum / Chest Straps Adjustable sternum strap with magnetic valve Adjustable sternum strap with rescue whistle
Hip Belt / Waist Strap Padded hipbelt
Main Compartment Access Full front zipped access Top access with lid
External Pockets Top zipped pocket Zippered hipbelt pockets, zippered sleeping bag compartment with floating divider, zippered hipbelt pockets, and 2 side pockets
Internal Compartments Internal scratch-free slash pocket
Side Pockets Side pockets can fit water bottle and other gears
Water Bottle No Yes
Handles Top grab handle Top grab handle
Loops and Attachments LidLock helmet attachment, ;oop for blinky light attachment Cord loop attachment points, loops to anchor an optional Osprey Daylite® daypack, sleeping pad straps
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 AirSpeed backpanel
Rain Cover Integrated removable raincover
Internal / External Frame Internal 4 mm LightWire peripheral frame
Adjustable Length Torso Intuitive torso adjustment system
Top / Floating Lid Fixed top lid with zippered pocket
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 Siskin 8 Hydration Backpack by Osprey against the Rook 65 Men's Backpacking Backpack by Osprey .


Osprey 's Siskin 8 Hydration Backpack is a Hydration backpack with Outdoor features while Osprey 's Rook 65 Men's Backpacking Backpack is a Backpacking backpack with Mens 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 Rook 65 Men's Backpacking Backpack's capacity is 65L with a size of 29.1 x 16.3 x 14.2 inches. Constructed from 600D Polyester it weighs 3.5 pounds and is available in 3 colors and patterns.