The Osprey Stratos and Sirrus backpacks are day packs designed for day hikes or overnights in the backcountry. Combining comfort, ventilation, and organizational features, the Stratos and Sirrus packs deliver lightweight, technical performance
Built for long day hikes and overnights in the backcountry, the Osprey Stratos 34 combines carrying comfort, ventilation and organizational features to deliver lightweight, technical performance.
Employing Osprey's Airspeed Suspension, the Stratos 34's 3D tensioned mesh backpanel provides flexible support and breathability to combat heat build-up between your back and the pack body. Both the hipbelt and harness straps are padded with die-cut foam and covered in mesh to enhance comfort and optimize fit. A webbing adjustable sternum strap further optimizes fit and includes a whistle buckle for safety. Upper side compression straps work in tandem with the InsideOut compression built on to the woven-mesh side pockets to allow you to cinch down the Stratos 34 and keep contents stabilized.
A large U-shaped zipper provides convenient front panel access to the Stratos 34’s main packbag while a suite of other zippered compartments also aid in organization. A large zippered top stash pocket, a zippered front pocket and a zippered lower sleeping bag compartment with a divider are all included, as well as zippered pockets on the hipbelt to keep small gear and trail essentials close at hand.
Other features found on the Stratos 34 include a single Stow-on-the-Go trekking pole attachment on the shoulder strap, removable sleeping pad straps, a single ice tool attachment with a stowable bungee tie-off and an integrated rain cover. A lined internal sleeve and drinking tube pass-throughs make the Stratos 34 compatible with hydration systems (sold separately).
The Osprey Stratos 34 is available in your choice of colors and Small/Medium (fits torso lengths ranging from 16"-19") and Medium/Large (18"-21") size options.
- Panel Access
- Large zippered top stash pocket
- Zippered front slash pocket
- Zippered lower sleeping bag compartment with divider
- LightWire alloy frame creates low-profile air space optimizing pack balance and ventilation
- 3D tensioned breathable mesh backpanel ensures supportive fit
- Harness featuring sewn-in spacer mesh, webbing adjustable sternum strap with whistle buckle and mesh covered ventilated dire-cut foam
- Hipbelt with zippered stretch mesh pockets and ErgoPull hipbelt closure
- Upper side compression straps
- Stow-on-the-Go trekking pole attachment
- Side mesh woven pockets with InsideOut compression
- Integrated raincover
- Single ice tool attachment with stowable bungee tie-off
- Removable sleeping pad straps
Access Panel Access Recommended Use Overnight Backpacking, Day Hiking Warranty Lifetime Volume Small/Medium: 1953 cu in
Medium/Large: 2075 cu in
Type Day Pack Sternum Strap Yes; Adjustable Position Other Rain Cover Included Maximum Weight 25 lbs Material 210D High Tenacity Twill Nylon, 420HD Nylon Rip Item Weight Small/Medium: 2 lbs 10 oz
Medium/Large: 2 lbs 12 oz
Hydration Compatible Yes Frame Material Aluminum Fits Torso Small/Medium: 16"-19"
Dimensions Small/Medium: 22" x 13" x 13"
Medium/Large: 24" x 13" x 13"
Detachable Daypack n/a
- My new fav smaller pack
Likes: I hike. I camp. I travel internationally. I like to travel light. I like to travel comfortably, and I hate to check luggage. Enter the Stratos 34. I have some smaller packs, and I have a few larger packs. But I find myself reaching for this pack more & more. It really strikes a happy balance. It's roomy like the larger packs, but has the panel loading style of the smaller packs. Nothing against the top loaders, I just find it easier to get to the things I need with the panel loader.
I wouldn't call myself ultra light, but like I said, I like to travel light. While not the lightest pack, the Stratos 34 is small enough to bring as carry on. A huge plus. Many top loaders of equal volume aren't carry on compatible because top loaders tend to be tall and narrow, while the Stratos 34 is shorter, but wider and has nice depth. I've had some issues with lost luggage in the past, but mostly I prefer the convenience of getting on and off the plane without having to wait.
I'm 6'4" tall and a muscular 230lbs, and although the Stratos line doesn't have an adjustable back panel like other Ospreys, the M/L fits me perfectly. It really carrys weight well, and the mesh back panel is super comfortable and airy. Especially useful in hotter climates. The shoulder straps are well padded, and the hip belt is very nice with some of the roomiest hip belt pockets on any pack I've ever tried. Seriously. Even the hip belt pockets on packs twice its size are barely big enough to squeeze in a cell phone. I can't tell you how difficult it is to get stuff out of most hip belt pockets once you squeeze them in. Not so on the Stratos 34. The hip belt pockets are beyond roomy, and easy to get stuff in and out of while wearing. Huge props to Osprey for getting this right.
Speaking of pockets, there are two stretch mesh water bottle pockets on either side of the pack. I will never get a pack without these. Although the Stratos is hydration pack compatible, I prefer water bottles. Call me old fashioned. Besides the main zippered compartment, there are also two smaller zippered compartments at the top of the pack for smaller items. Great for organizing stuff you want quick access to. Then there is a bottom zippered sleeping bag compartment. A rare but much appreciated feature on a pack this size. Even if you aren't going camping, it's a great way to further organize and separate your gear. Or a nice place to stash wet gear away from the main compartment contents. But if you wish to open the pack up, you can unhook the divider to the lower compartment making it one big one. The bottom zipper then makes it easier to get to items in the bottom of the pack.
The one pocket missing on the Stratos 34, and why I'm giving it 4 out of 5 stars is the stretchy front pocket found on most other Osprey packs. I really miss it on the Stratos. It's a handy pocket to stuff layers if it gets too hot for quick access, as well as wet gear. I hope Osprey includes it on the next version, because then it will be a 5 star pack for sure.
Speaking of wet, the Stratos 34 comes with an integrated rain cover. Yes! I think all higher end packs should. My osprey Talon 44 didn't, but the good thing is that the rain cover for the Stratos 34 fits the Talon 44. So if I need to go bigger, I'm covered.
I think that's about it. Great pack for the money. If you're looking for an overnighter, or a multi day pack if you pack light like I do, then don't hesitate to buy the Stratos 34 if it fits. There is also a Stratos 36 but it's a top loader. I prefer the panel loader for this size pack. Just makes it easier, and the carry on ability is a huge bonus.
Dislikes: Again, the only thing I didn't like about this pack is the lack of a front mesh stretchy pocket. Most Ospreys have it, and I don't know why they left it off the Stratos line. But it is the only reason I'm giving this pack 4 stars instead of 5.