Osprey Exos 58 Mens Backpacking Backpack vs Osprey Siskin 8 Hydration Backpack

The main difference between the Osprey Exos 58 Mens Backpacking Backpack and the Osprey Siskin 8 Hydration Backpack is that the Exos 58 Mens Backpacking Backpack has Hip Belt / Waist Strap (Exoform hipbelt) while the Siskin 8 Hydration Backpack does not.

Osprey Exos 58 Mens Backpacking Backpack Front View
Osprey Siskin 8 Hydration Backpack Front View
Specs Brand Osprey Osprey
Name Exos 58 Mens Backpacking Backpack Siskin 8 Hydration Backpack
Category Backpacking Hydration
Sub Category Mens Outdoor
Capacity (L) 58L 8L
Dimensions (in) 31.5 x16.14 x 14.57 18.5 x 8.5 x 6.9
Weight (lb) 2.7 1.2
Fabric 100D High Tenacity Nylon 900x600D Polyester
Color 2 colors and patterns 3 colors and patterns
Warranty Osprey Lifetime Warranty Osprey Lifetime Warranty
Release Date February 4, 2015 December 5, 2018
Rating 4.6 4.8
Price Under $250 Under $100
General Features Shoulder Straps Exoform shoulder straps Adjustable shoulder straps
Sternum / Chest Straps Sternum strap with integrated safety whistle Adjustable sternum strap with magnetic valve
Hip Belt / Waist Strap Exoform hipbelt
Main Compartment Access Top loading access Full front zipped access
External Pockets Front stretch mesh pocket and 2 side 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 Ice axe attachment with bungee tie-off, accessory cord attachment points, and Stow-on-the-Go trekking pole attachment LidLock helmet attachment, ;oop for blinky light attachment
Travel Features Compression Straps External compression straps External compression straps
Rear Loading Straps Yes
Hiking / Backpacking Features Back Panel 3D-tensioned breathable mesh backpanel with side ventilation Mesh-covered extra deep ridged foam with center air channel
Load Lifters Yes
Internal / External Frame 4mm Lightwire alloy internal frame
Ventilated Back Yes
Top / Floating Lid Yes
Trekking Pole Holders Yes
Reflective Safety Strips Reflective accent
Hydration Features Bladder Size Holds 3L hydration reservoir Includes Osprey Hydraulics LT 2.5L reservoir by Hydrapak
Hydration Compatible Yes Yes

You're currently comparing the Exos 58 Mens Backpacking Backpack by Osprey against the Siskin 8 Hydration Backpack by Osprey .


Osprey 's Exos 58 Mens Backpacking Backpack is a Backpacking backpack with Mens features while Osprey 's Siskin 8 Hydration Backpack is a Hydration backpack with Outdoor features.

The Osprey Exos 58 Mens Backpacking Backpack has a capacity of 58L (liters), weighs 2.7 pounds and it's dimensions in inches are 31.5 x16.14 x 14.57. It's made of 100D High Tenacity Nylon and is available in 2 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.