I was on the lookout for a new daypack this summer requiring the following: good ventilation, hipbelt pockets (for easily accessible snacks), and a built-in rain cover so my new ridiculously expensive Canon 7D stays safe during those reliable afternoon mountain showers.
Having never owned an Osprey pack and having never heard an ill word about their packs, I was stoked to give the Osprey Sirrus 24 a whirl and was absolutely thrilled with the pack’s comfort and features.
The Osprey Sirrus 24 is a women’s specific daypack available in three torso sizes so you can find the best fit. I am a rather small 5’2” 105 pound female with a short torso so the small size fit me 
perfectly. Use Osprey’s sizing guide to help determine the best fit for you or go to an REI or other outdoor store and have someone help get you into the best fitting pack.
I bought the pack with the intention of hiking with my Canon SLR camera, lunch and a few snacks, full 2-liter bladder, and a rain jacket and I was able to fit all in the pack with room for more. I was a huge fan of all the pockets. The hip pockets are great for a small camera, phone, bars, or bag of trail mix and the harness pocket kept my chapstick easily accessible. The main compartment is a little snug with a full bladder in the reservoir pocket, but I was able to pack everything I needed for my dayhikes this summer including my first 14,000 foot peak.
The Osprey Sirrus has several other neat features such as the “Stow On The Go” trekking pole attachment that allows you to secure your trekking poles to your pack without having to slow down or take off your pack. The integrated raincover came in handy and was easy to slip over the pack and secure with the cord lock at the bottom of the cover. You can also remove the raincover to dry out after using it in the rain.
All in all, I am thrilled with the Osprey Sirrus pack. It fit comfortably, the mesh backpanel kept me from getting sweaty gross, and the cleverly designed pockets provided me with much needed organization with all the necessities within reach.
The Details:
- Women-specific harness and hipbelt along with 3 torso sizes to choose from for the perfect fit
- Osprey’s AirSpeed suspension system with breathable mesh backpanel allowing full air circulation
- Built-in internal hydration sleeve accommodating up to 3 liters (reservoir not included)
- Dual mesh side pockets, zippered pocket on harness strap, and hipbelt pockets
- “Stow On The Go” trekking pole attachments, pairs nicely with the Black Diamond Z-Poles
- Integrated, yet removable raincover
- Available in a lovely shade of purple and blue