Sirrus 44You take your hiking seriously, and like to stretch your day hikes into lightweight overnights more often than not. The Sirrus 44 is a full featured women's specific pack built for rugged trails, rain or shine, with serious features and a top loading design so you can easily stuff and go. It's a technical pack with a cloudlike carry, thanks to its highly ventilated AirSpeed suspension system. Made with 100% recycled materials.