The main difference between the Osprey Radial Bike Commute Backpack and the Osprey Siskin 8 Hydration Backpack is that the Radial Bike Commute Backpack has Hip Belt / Waist Strap (Webbing hipbelt) while the Siskin 8 Hydration Backpack does not.
Specs | Brand | Osprey | Osprey |
Name | Radial Bike Commute Backpack | Siskin 8 Hydration Backpack | |
Category | Commuter | Hydration | |
Sub Category | Everyday | Outdoor | |
Capacity (L) | 34L | 8L | |
Dimensions (in) | 20.49 x 13.79 x 11.82 | 18.5 x 8.5 x 6.9 | |
Weight (lb) | 3.3 | 1.2 | |
Fabric | 210D Nylon Dobby | 900x600D Polyester | |
Color | 3 colors and patterns | 3 colors and patterns | |
Warranty | Osprey Lifetime Warranty | Osprey Lifetime Warranty | |
Release Date | July 31, 2019 | December 5, 2018 | |
Rating | 4.6 | 4.8 | |
Price | Under $200 | 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 | Webbing hipbelt | ||
Main Compartment Access | Normal zipped access | Full front zipped access | |
External Pockets | Scratch-free zippered pocket and 2 side zipped pockets | Top zipped pocket | |
Internal Compartments | Document sleeve and internal organization | 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 | LidLock helmet carry, blinker light attachment | LidLock helmet attachment, ;oop for blinky light attachment | |
Business & School Features | Laptop Sleeve | Padded laptop sleeve fits up to 15" | |
Organizer Pocket | Front organization pocket | ||
Travel Features | Compression Straps | External compression straps | |
Hiking / Backpacking Features | Back Panel | Airspeed back panel | Mesh-covered extra deep ridged foam with center air channel |
Rain Cover | Built-in raincover | ||
Ventilated Back | Mesh-covered die-cut foam for ventilation | ||
Reflective Safety Strips | Reflective prints and zipper pulls | Reflective accent | |
Gym / Sports Features | Laundry Pocket | Separate compartment for dirty clothes or shoes | |
Hydration Features | Bladder Size | Includes Osprey Hydraulics LT 2.5L reservoir by Hydrapak | |
Hydration Compatible | Yes |
Osprey 's Radial Bike Commute Backpack is a Commuter backpack with Everyday features while Osprey 's Siskin 8 Hydration Backpack is a Hydration backpack with Outdoor features.
The Osprey Radial Bike Commute Backpack has a capacity of 34L (liters), weighs 3.3 pounds and it's dimensions in inches are 20.49 x 13.79 x 11.82. It's made of 210D Nylon Dobby 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.