MightyGoods > Osprey > Osprey Sirrus

Osprey Sirrus Reviews and Buyer's Guide (Jan 2019)

4.22 based on 482 reviews
Osprey Sirrus
93% of the Osprey Sirrus reviews are good or excellent!

Excellent (78%)
Good (15%)
Average (3%)
Poor (0%)
Bad (2%)

43 - this bag is popular.

Specs across all Sirrus models
Capacity iconCapacity24-50 l (1465-3051 cuin)
Weight iconWeight2.5-3 oz (1.1-1.4 kg)
Length iconLength19-27 in (48-69 cm)
Width12-13 in (30-33 cm)
Height12-14 in (30-36 cm)

Reviews Summary

Here's what the reviewers think about the Osprey Sirrus:

Reviewers like these things about the Osprey Sirrus

  • According to several reviewers, the Osprey Sirrus backpack provides sufficient ventilation on the back due to its mesh back panel.
  • Other users praised its hip belt for being able to fit perfectly on them.
  • Users also commended the bag for being able to store several more gears and valuables due to the spacious storage capacity of its pockets and compartments.
  • Reviewers thought that the back panel of the backpack molds to their back without generating too much heat.
  • Its integrated rain cover is praised by testers who wish to have their bags dry especially when it is exposed to misty conditions.
  • Many users have mentioned that the bag provides an attachment area where they can quickly place their trekking poles.
  • Other users said that the backpack is ideal for day hikes and trails.
  • Several others pointed out that the weight of the pack rests on the hips rather than on the back.

Reviewers don't like these things

  • A reviewer thought that the backpack might be smaller than expected.
  • Another reviewer felt that the pack may not be ideal for long hikes and travels.

Popular Models

Osprey Sirrus 24

63% choose the Osprey Sirrus 24

Colors and combinations:


Capacity iconCapacity24 l (1465 cuin)
Weight iconWeight2.6 oz (1.2 kg)
Length iconLength19 in (48 cm)
Width12 in (30 cm)
Height12 in (30 cm)

Osprey Sirrus 36

24% choose the Osprey Sirrus 36

Colors and combinations:


Capacity iconCapacity36 l (2197 cuin)
Weight iconWeight3 oz (1.4 kg)
Length iconLength26 in (66 cm)
Width12 in (30 cm)
Height12 in (30 cm)

Osprey Sirrus 50

12% choose the Osprey Sirrus 50

Colors and combinations:


Capacity iconCapacity50 l (3051 cuin)
Weight iconWeight2.5 oz (1.1 kg)
Length iconLength27 in (69 cm)
Width13 in (33 cm)
Height14 in (36 cm)

Feature Summary

Many sources mention these Osprey Sirrus features:
  • Hydration bladder
  • Hydration compatible
  • Compression straps
  • Sternum strap
  • Raincover included

Some sources also mention these features:
  • Side pockets
  • Stretch mesh
  • Hip belt
  • Hip belt pockets
  • Sleeping bag compartment
  • Adjustable torso
  • Load-lifter straps

Actual features depends on the model, so check the features before you buy.

Packing Guide

See how much a traveller, an athlete and an outdoorsy person can pack in the different Osprey Sirrus models (the most popular choice is the Sirrus 24).

Capacity/Weight Levels

The capacity/weight level shows how much the bag weights compared with it's capacity (volume).

The lower the capacity/weight level, the better.

2424 l2.6 oz0.11 oz/L
3636 l3 oz0.08 oz/L
5050 l2.5 oz0.05 oz/L

Osprey Sirrus
Average for 17,986+ different bags


vs Osprey Bags

The Osprey Sirrus ranks #44 compared with the other Osprey bags.

42Osprey Nova
Osprey Nova
43Osprey Sirrus
Osprey Sirrus
44Osprey Sojourn
Osprey Sojourn
45Osprey Duro
Osprey Duro
46Osprey Pogo
Osprey Pogo

vs All Bags

The Osprey Sirrus ranks #415 compared with all the bags we have checked.

Top 30% bag

413Sherpani Milli
Sherpani Milli
414Osprey Sirrus
Osprey Sirrus
415Osprey Sojourn
Osprey Sojourn
416Burton Gig
Burton Gig
417Tumi Voyageur
Tumi Voyageur

Vs Other Bags

Osprey Sirrus vs Osprey Stratos

Different people are going to want to carry different backpacks. The Sirrus is made for the casual hiker and its design is specifically created to accommodate those in need for more comfort. It's perfect for hikers who want to easy the stress off their back and enjoy the outdoors as it should be.

The Stratos is for someone who doesn't mind carrying a bit more on them. It's certainly going to be much heavier than the Sirrus but it gives you more room for the things you're going to want to bring. Buy it if you want more space.

Osprey Stratos 4.37 based on 836 reviews

Selected Reviews

Treeline Tales

Ventilation is very good, a lot of airflow between back and pack. Osprey’s tagline The wind on your back’ holds true. Therefore the superlatives have to stay in, this backpack deserves it.

Posted 5 October 2017 by Marina - Read full review

Bag ID 31208. Images from Amazon Product Advertising API

Last updated on January 11, 2019