- Internal hydration sleeve accommodates up to a 3L reservoir (sold separately)
- Ventilated backpanel with adjustable shoulder harness to dial in perfect fit
- Stretch mesh pockets on both sides of pack provide convenient storage for bottles and smaller items
- Two zippered hipbelt pockets
- Stow-On-The-Go Trekking pole attachment allows you to quickly attach and carry trekking poles while wearing the pack
- Integrated and removable raincover
The supremely ventilated, featured and durable Sirrus Series receives a makeover that is more than skin deep for Spring 2017. Now featuring adjustable torso lengths, improved women's specific fit and comfort with updated aesthetics, the Sirrus 24 is the go-to choice for those who prefer panel-loading organization on day hikes in wet or hot environments where staying dry and keeping your cool matter most. When the weather turns, fear not - Sirrus keeps your gear and pack protected with an integrated raincover. Smartly organized pocketing keeps all your equipment where you need it, when you need.The Sirrus 24's dimensions are 19.3 X 11.8 X 11.8 IN. offering 24L of space. No matter where you go, the Sirrus series is backed by the Osprey All Mighty Guarantee.