Osprey Sirrus 24L Women's Hiking Backpack - Breathable Daypack

Our review of the Osprey Sirrus 24L Women's Hiking Backpack finds it best suited to hikers who want a breathable, well-organized daypack that doubles for lightweight overnight trips. The standout reason to buy is the AirSpeed Ventilation suspension that keeps the back cool while providing a stable, supportive carry on technical trails. Built with a women's-specific frame and adjustable ladder torso, this pack balances comfort and load control in a compact 24L package, and an integrated raincover makes it ready for foul weather without fuss.

Key Features

• AirSpeed Ventilation: The adjustable injection-molded suspension with 3D-tensioned mesh provides breathable support to reduce hot spots on long climbs.
• Comprehensive Fit: Taller, wider frame geometry and a molded ladder torso adjustment let users dial in a secure fit across a broader range of body sizes.
• Panel Loading Access: A burly #10 zipper on the panel-loading main compartment gives wide access to reach clothing and gear quickly.
• Integrated Raincover: The included raincover keeps the pack and contents dry in sudden showers without needing a separate rain sleeve.
• Hydration Ready: An internal hydration sleeve with a hose port lets users run a reservoir cleanly through the backpanel for easy sipping on the move.

Who It's For

The Sirrus 24L is a good choice for day hikers, fastpackers, and multi-day minimalists who prioritize ventilation and an easy-to-adjust fit. The women's-specific geometry and ladder-torso adjuster make it suitable for shorter to average-torso hikers who want a stable pack that does not sacrifice airflow.

Hikers who need large-volume expedition packs or ultra-minimal frameless sacks should look elsewhere; this pack targets organized day trips and lightweight overnights rather than heavy backpacking loads. If absolute minimal weight is the top priority, some simpler 20L or frameless options will be lighter.

Pros & Cons

Pros

• Comfortable, ventilated backpanel reduces sweat and hot spots on long hikes.
• Adjustable torso and women's-specific frame improve fit and load stability for a variety of users.
• Well-considered organization and pockets keep essentials accessible on the trail.
• Included raincover adds weather protection without extra purchases.

Cons

• At 2.73lb some users find the pack heavier than minimalist daypacks, so weight-conscious hikers may prefer a lighter option.

Specifications

Brand	Osprey
Model	Sirrus 24L Women's Hiking Backpack
Volume	24L
Dimensions	21.7H x 13.4W x 9.4D in
Weight	2.73lb
Material	100% recycled nylon main body (bluesign approved)
Key Features	AirSpeed suspension, panel loading, hydration sleeve, included raincover

Our Verdict

The Osprey Sirrus 24L is a versatile, well-built daypack that excels when ventilation, fit adjustability, and organized access matter most. It represents solid value for hikers who plan technical day trips or light overnights and want a reliable pack with weather protection built in.

Frequently Asked Questions

Is the Sirrus 24L hydration compatible?
Yes, it includes an internal hydration sleeve with a hose port in the backpanel for routing a reservoir.

Does it include a raincover?
Yes, an integrated raincover is included to protect the pack and contents in wet conditions.

Is this pack suitable for multi-day backpacking?
It works for lightweight multi-day trips for minimalists, but it is primarily designed as a daypack and may not replace larger expedition packs for heavy loads.