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Description
Osprey Sirrus 34For 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
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.
Features
- Included raincover made with PFC/PFAS-free DWR and bluesign® approved materials
- Zippered front stash pocket
- Dual zippered hipbelt pockets
- Side stretch mesh bottle pockets
- Internal hydration sleeve with hose port in backpanel
- Stow-on-the-Go trekking pole attachment with new soft-touch tubes
- Dual side compression straps
- Single ice axe loop with bungee tie-offs
- Front panel lash loops for attaching extra gear
- Panel loading design with a burly #10 zipper delivering wide access to main compartment
- Zippered access lower compartment with a floating liner keeps contents more organized and accessible
- Zippered mesh pocket with key clip at the top of the pack provides easy access to important items
- Zippered pocket on top of the front panel offers a spot for sunglasses or other delicates
- Accessory straps on lower front panel are perfect for pads or blankets
Key Attributes
AIRSPEED™ VENTILATION
Injection-molded suspension system w/ 3D-tensioned mesh provides breathable support.
COMPREHENSIVE FIT
Taller, wider frame geometry combines with tailored adjustment system to extend fit range.
INCLUDED RAINCOVER
Made with sustainable bluesign® APPROVED materials.
Carry Information
AirSpeed® SUSPENSION
- Injection-molded ladder adjustment system provides 4" of torso adjustability
- O/S per gender design delivers great fit and allows for quick, easy adjustment
- Taller, wider 4 mm powder coated LightWire frame enhances fit range
AirSpeed® BACKPANEL
- 3D-tensioned breathable mesh backpanel ensures supportive fit
- New design increases ventilated area up to 40% over our previous design
- New yoke design ensures consistent fit at any setting
HARNESS
- Highly ventilated die-cut EVA foam is wrapped in wide spacer mesh for outstanding comfort in all weather conditions
- Adjustable sternum strap with rescue whistle
HIPBELT
- Ventilated die-cut EVA foam is covered in wide spacer mesh for outstanding comfort in all weather conditions
- Large zippered pockets provide secure access to small essentials on the trail
- ErgoPull closure provides leverage to ensure snug fit and optimal load transfer
Specifications
| LOAD RANGE | 15 - 30 lbs. | |
| O/S | ||
|---|---|---|
| VOLUME | 2075 IN 3 / 34 L | |
| DIMENSIONS | 10.63H X 14.17W X 22.44D IN. | |
| WEIGHT | 3.038 LBS. | |
FABRIC
MAIN
bluesign® APPROVED 210D recycled honey comb nylon, PFC/PFAS-free DWR
LINING
bluesign® APPROVED 420D recycled nylon, PFC/PFAS-free DWR
BOTTOM
bluesign® APPROVED 420D recycled nylon, PFC/PFAS-free DWR
WARNING: This product can expose you to chemicals including dimethylformamide, which is known to the State of California to cause cancer. For more information, go to oehha.ca.gov/proposition-65/about-proposition-65
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.2 ★★★★★
Based on 20 reviews
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Product Reviews
★★★★★ 5
Makes For Quiet Rides
Model: 10 SqFt(0.95 SqM)
Comparable quality and performance to name brand competitor. It sticks on strong, easy to apply, and does make a difference in sound reduction. Turn your hollow shell sounding vehicle panels into solid sounding walls.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 15, 2026
★★★★★ 5
Must for subwoofers. True 2mm spec. High quality.
Model: 36 SqFt(3.4 SqM), Model: 36 SqFt(3.4 SqM)
Let me start of by saying WOW! This made a huge difference in the SQ of my L7S pushing 930w rms. Before I had major rattles in my 2020 Honda Civic SI. Taking the time to do this to my trunk and Lid made me realize just how loud my subwoofer actually is. It literally eliminated the rattles throughout my whole car. I still plan on doing this to my doors and rear deck but once I upgrade the speakers. I still have half of the box just doing the trunk and lid so 1 box of 36sf will be enough for most of the areas that need to get done. You may need a little more overall. This is true 2mm spec. Very sticky and easy to apply. It just take time to finish the work correctly and roll it down. It is not as heavy as I thought it was going to be. The size of the sheets are perfect for what you need to do. The value is on point for the quality. It does not rip very easily but you can cut it to size without any problems. Again, This is a must buy for anyone who is pushing 1000w rms or more.
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Reviewed in the United States on November 29, 2025
★★★★★ 5
Quality product you
Model: 18 SqFt(1.7 SqM), Model: 18 SqFt(1.7 SqM)
Summary: Great quality product, priced right. Cuts and installs easy-follow the instructions people!! PRO TIP-you don’t need to cover every square inch. OVERKILL!! Think about it-when a bell rings you could put your fingers on the edge and silence it right? Same rules apply here. A strip or square will isolate the vibration and notice when placed correctly— knock on the surface and see what vibrates or what part makes the loudest drowning and that’s a good clue of where you should put a piece of this…unless you’re trying to use it for temperature insulation no need to go ape on it. If you look at the bottom of a stainless steel sink, it’s got a stripe or a small sticker of insulation that keeps it from rattling. You can do that here. What’s important to note is the instruction specifically say use a roller to roll the ribs out until it’s smooth that way you’ve got maximum adhesion. I see a lot of pictures and videos from people that finished their install and didn’t follow this simple instruction. It makes sure that it’s stuck down before you put all your paneling and carpet back in and it’s a small step with a cheap wooden roller it’s easy. I’ll say the installation with this product is a breeze. You can use sharp scissors or a blade. It does get gummy after a while, and you may need to clean off your blade or your scissors, but it cuts very well and the ribs make it easy to size in space the thickness is fantastic and the backing paper comes off quite easily. I’ve done lots of installations with Graphics emblems you name it and this product is very easy to use and represents good value.
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Reviewed in the United States on March 30, 2026
★★★★★ 5
Good stuff !
Model: 36 SqFt(3.4 SqM), Model: 36 SqFt(3.4 SqM)
This is an excellent product. Easily moldable, cuttable with good scissors or razor knife, very sticky, works great.
This pack was enough to do all 4 doors on a crew max truck, and I went wild on the fronts. I used 9 peices on each rear door which was just enough, and the rest on the fronts. I doubled up layers and even used some on the back of the door panels. If you follow the instructions and dont go wild you might even have extra left over.
It works just like you would imagine. Without doing the entire cab there will still be road noise but this helped noise, better audio, no buzzing door panels, terrific improvement.
It is kind of heavy, so extra weight is added to truck, but that really isnt a bad thing. It is noticable but in a good way.
Get it. Use it.
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Reviewed in the United States on March 20, 2026
★★★★★ 4
Good product
Model: 36 SqFt(3.4 SqM)
Easy to roll out. Works great
Why did you pick this product vs others?:
Fair price for the amount of coverage, good quality
Works well:
Easy to install, rolls out great. Forms to contours well
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 13, 2025
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