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Osprey Sirrus 24 Review

This pack is loaded with features, and if it fits, you'll love it!
Osprey Sirrus 24
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Price:  $130 List | $129.95 at Backcountry
Compare prices at 3 resellers
Pros:  Comfortable, well-ventilated, adjustable torso length, included rain cover
Cons:  Heavy, ill-fitting hipbelt
Manufacturer:   Osprey
By Cam McKenzie Ring ⋅ Senior Review Editor  ⋅  Aug 28, 2017
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74
OVERALL
SCORE

RANKED
#2 of 15
  • Comfort - 25% 8
  • Versatility - 25% 8
  • Weight - 25% 5
  • Ease of Use - 15% 8
  • Durability - 10% 9

Our Verdict

The Osprey Sirrus 24 is a great daypack that came close to winning our Editors' Choice award. It's comfortable, has lots of padding and an open mesh back, and lots of great extras. While it only comes in one size, the back does adjust up to 4 inches, one of the only packs in this review to do so. Ultimately, we slightly preferred our Editors' Choice winner, the CamelBak Sequoia 22 over this model, as we got a better fit in it than this one. However, if the Sirrus fits you well you're sure to love all the great features it contains.


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Osprey Sirrus 24
This Product
Osprey Sirrus 24
Awards  Editors' Choice Award    
Price $129.95 at Backcountry
Compare at 3 sellers		$150.00 at Amazon$110.00 at Amazon$149.95 at REI
Compare at 3 sellers		$119.95 at REI
Compare at 3 sellers
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Pros Comfortable, well-ventilated, adjustable torso length, included rain coverComfortable, lots of good features, water reservoir includedCompact, adjustable, comfortable for a light bag.Large capacity, good back ventilation, adjustable torso, included rain coverLightweight, a few nice features, adjustable torso
Cons Heavy, ill-fitting hipbeltOn the heavy side, expensiveNo rain cover, hip belt pockets are made of mesh.Runs small, heavy, expensive, large for average day hike needsMinimal padding, loses shape when stuffed
Bottom Line This pack is loaded with features, and if it fits, you'll love it!A versatile daypack that can hold a lot of gear.A light and simple daypack that is perfect for quick jaunts on the trail.The biggest and most comfortable daypack in our test group. Great for heavy loads and big days out.A simple daypack for light loads and quick hikes.
Rating Categories Osprey Sirrus 24 CamelBak Sequoia 22 Lowe Alpine Aeon ND20 Gregory Jade 28L Gregory Maya 22
Comfort (25%)
10
0
8
10
0
9
10
0
6
10
0
8
10
0
6
Versatility (25%)
10
0
8
10
0
9
10
0
8
10
0
8
10
0
7
Weight (25%)
10
0
5
10
0
6
10
0
7
10
0
5
10
0
7
Ease Of Use (15%)
10
0
8
10
0
8
10
0
8
10
0
7
10
0
6
Durability (10%)
10
0
9
10
0
9
10
0
8
10
0
8
10
0
7
Specs Osprey Sirrus 24 CamelBak Sequoia 22 Lowe Alpine Aeon... Gregory Jade 28L Gregory Maya 22
Weight (oz) 41 36 29 42 28
Volume/Capacity (liters) 24 22 20 28 22
Back Construction Ventilated tensioned mesh Ventilated back panel with molded pods Air Contour backing with Flexion harness Crossflow suspension Padded, mesh covered
Hydration Internal hydration sleeve External hydration sleeve and 3L Crux reservoir included External hydration sleeve Internal hydration sleeve External hydration sleeve
Hipbelt Yes Yes Yes Yes Yes
Compartments 1 2 1 1 2
Rain Cover Yes No No Yes No
Additional pockets 5 7 5 6 6
Outside Carry Options Trekking pole attachment, ice axe loop, side strech pockets Trekking pole and ice axe attachments, side pocket, hip belt pockets (one zip), daisy chain, hydration hose clip Trekking pole and ice axe attachements, side pockets, helmet attachment External stretch pocket, trekking pole holders, ice axe attachement, sunglasses loop and bungee, hip belt pockets, hydration hose clip Expandable front pocket, loop for helmet, two side pockets, trekking pole and ice axe attachments, sunglasses loop and bungee, hip belt pockets, hydration hose clip
Whistle Yes No Yes Yes No
Key Clip Yes Yes Yes Yes Yes
Materials 210D nylon body, 420D nylon bottom 200D ripstop nylon, 400D plain-weave nylon Abrasion-resistant nylon coated with TriSheild 210D nylon body, 420D nylon bottom 210D nylon body, 420D nylon bottom
Notable Features Ice axe loop, trekking pole attachment, adjustable back Hydration bladder included, multiple pockets in both hip belts, internal storage pockets, exterior pocket felt-lined Ice axe loops, trekking pole attachment, adjustable back Adjustable torso length, internal pocket, cinch straps, sunglasses quick-stow Adjustable torso length, internal pocket, cinch straps, exterior pocket felt-lined, sunglasses quick-stow

Our Analysis and Test Results

The Osprey Sirrus 24 is made with 210D nylon with 420D nylon on the bottom. It comes loaded with many great features, including a rain cover and open mesh back design.

Performance Comparison


Checking out the Yellowstone river in the Sirrus. This pack is loaded with features for a variety of day hiking uses.
Checking out the Yellowstone river in the Sirrus. This pack is loaded with features for a variety of day hiking uses.

Comfort


This pack received a high score for comfort. There's ample padding on the shoulder straps, though not quite as much on the hip belt. The suspended mesh back design is comfortable and kept the air circulating. No more soaking wet shirt! The hipbelt didn't fit us very well though, and that affected our comfort a bit. We'd tighten it down around our hips, but as soon as we started moving it would ride up to our waist. This goes to show that it's not enough to try a pack on in the store to see if the torso length fits — you should always load it up and walk around a few minutes to see if everything else works for you as well. If you like the open mesh back concept but still want some padding on your lumbar area, the Gregory Jade 28 provides just that and is more comfortable than the Sirrus.

We really liked the suspended mesh frame on this pack. It helps air circulate and keep any bulky items in your pack off of your back.
We really liked the suspended mesh frame on this pack. It helps air circulate and keep any bulky items in your pack off of your back.

Versatility


The Sirrus is loaded with useful features that are handy for just about any adventure. There's a rain cover that stores in a pouch at the bottom of the pack, side compression straps and top buckle compression straps (for attaching a rope around the top of the bag), an ice axe holder loop with a bungee cord, and several different smaller organizational pockets. It also has Osprey's "stow on the go" trekking pole attachment, which lets you stow them quickly under your arm and up into a shoulder strap. This is great for quick stowage when you want to scramble up a boulder or other hands-free needs, but not so great for any longer than that. Overall though, the features are great and well-thought out.

A hip belt pocket is great for holding a phone or other quick access items. Look for ones that made of a solid material rather than mesh as they will keep your items drier and protect them from dirt.
The "stow on the go" pole holder on the shoulder strap is great for quickly stashing your poles but not so comfortable for all day wear.

Weight


At 41 ounces, this is one of the heaviest packs in our review. The open mesh back requires a frame, and that and the more durable material adds to the overall weight of the pack. If you don't need or want the extra airflow, carry minimal stuff in your pack, and want all of your gear to be as light as possible, check out the Mammut Lithia Speed 15. But for what you get, we think the weight is justified.

Ease of Use


We think that overall this pack is fairly easy to use, with long zippers and decent organization for on the go. It comes in only one size, but it has an adjustable torso length that takes the back from 15 to 19 inches. In that sense, it is one of the most adjustable packs in our review group. However, we were disappointed by the adjustability of the hip belt. It barely covered our testers' hip bones, and they are a size 2 and 4, so if your hips are any larger, you might not get great coverage with the hip belt. The Lowe Alpine Aeon ND20 also has an adjustable back, and its hip belt offers more coverage and stays in place better.

The hipbelt just barely reached around our hips and we're not that big! It also kept riding up onto our waist which was not that comfortable.
The hipbelt just barely reached around our hips, and we're not that big! It also kept riding up onto our waist, which was not that comfortable.

Durability


The Sirrus impressed us the most for durability, and we gave it top marks for this category. It's made with a heavier 210D nylon in the body (other packs in this review use only 100D nylon, which won't hold up as well to spiky plants and sharp rocks) and there is a 420D panel on the bottom for extra durability in that high-wear spot. Osprey also stands by their products and will repair or replace defects or structural damage (but not cosmetic wear and tear).

The lighter green material on the bottom and sides is much thicker than the rest of the pack for extra durability.
The lighter green material on the bottom and sides is much thicker than the rest of the pack for extra durability.

Best Applications


This pack is a great option for a variety of uses. If you live in a wet climate, the rain cover has you "covered." If you hike a lot in the summer or live in a warmer part of the country, the open mesh back will help keep you cooler. It can hold a good amount of gear as well, so if you tend to take a lot on your day hikes or are heading out with young kids and need to carry their extra layers and food for them, this pack is a great choice.

Checking out Yellowstone Falls on a wet day. The pack cover kept our snacks and extra layers dry. The Sirrus is a great choice if you live in a wet climate or need extra space for your kids' gear as well.
Checking out Yellowstone Falls on a wet day. The pack cover kept our snacks and extra layers dry. The Sirrus is a great choice if you live in a wet climate, or need extra space for your kids' gear as well.

Value


At $130, this is one of the more expensive packs in this review. Considering all of the features that you get along with the durability, we think it's worth the price, but if you're on a budget or looking to save a few dollars, check out our Best Buy winner, the Gonex 35L, which retails for just $37, or the throwback-style REI Co-op Trail 25 for $80.

Conclusion


There's a lot to like about the Osprey Sirrus 24. It's a comfortable daypack with a great back design that improves airflow without sacrificing comfort or support. We are not a big fan of the hip belt, which kept riding up onto our waist and is sized rather small, but there's a lot of variability in women's hips, and it might just fit you better than us.


— Cam McKenzie Ring