The main difference between the Osprey Ultralight Stuff Backpack and the Osprey Sirrus 24 Womens Hiking Backpack is that the Ultralight Stuff Backpack has Packable / Foldable (Folds into its built-in storage pocket) while the Sirrus 24 Womens Hiking Backpack does not.
Specs | Brand | Osprey | Osprey |
Name | Ultralight Stuff Backpack | Sirrus 24 Womens Hiking Backpack | |
Category | Hiking | Womens | |
Sub Category | Daypack | Hiking | |
Capacity (L) | 18L | 24L | |
Dimensions (in) | 17 x 9 x 7 | 19.3 x 11.8 x 11.8 | |
Weight (lb) | 0.2 | 2.6 | |
Fabric | 40D Nylon Ripstop | 210D Nylon Crosshatch | |
Color | 4 colors and patterns | 3 colors and patterns | |
Warranty | Osprey Lifetime Warranty | Osprey Lifetime Warranty | |
Release Date | May 30, 2015 | July 27, 2016 | |
Rating | 4.6 | 4.7 | |
Price | Under $50 | Under $150 | |
General Features | Shoulder Straps | Breathable mesh shoulder straps | Adjustable shoulder straps |
Sternum / Chest Straps | Adjustable sternum strap with safety whistle | ||
Hip Belt / Waist Strap | Hipbelt with pockets | ||
Main Compartment Access | Normal zipped access | Normal zipped access | |
External Pockets | 1 zipped top pocket and 2 side pockets | Large top panel zippered slash pocket and dual side stretch mesh pockets | |
Side Pockets | Side pockets can fit water bottle | Side pockets can fit water bottle | |
Water Bottle | Yes | Yes | |
Handles | Top grab handle | Top grab handle | |
Loops and Attachments | Stow-on-the-Go trekking pole attachment, ice tool loop with bungee tie-off | ||
Travel Features | Packable / Foldable | Folds into its built-in storage pocket | |
Compression Straps | External compression straps | ||
Hiking / Backpacking Features | Back Panel | 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 | ||
Hydration Features | Hydration Compatible | Yes |
Osprey 's Ultralight Stuff Backpack is a Hiking backpack with Daypack features while Osprey's Sirrus 24 Womens Hiking Backpack is a Womens backpack with Hiking features.
The Osprey Ultralight Stuff Backpack has a capacity of 18L (liters), weighs 0.2 pounds and it's dimensions in inches are 17 x 9 x 7. It's made of 40D Nylon Ripstop and is available in 4 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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