Osprey Sirrus 34 -- 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 AirSpeed suspension system, tailored for women's-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.