For day hikes where you need to prepare for anything and pack accordingly, the higher-volume Sirrus 34 makes for a rugged choice. Its sustainably produced panel-loading design makes organizing and packing your hiking gear convenient, while its AirSpeedsuspension system, tailored for womens-specific fit, keeps everything feeling light and breezy, no matter where the trail takes you. Plus, should the forecast call for rain, carry on with confidence using the included raincover. Unsure about sizing? Use Osprey’s Size Guide to find the perfect fit.