What torso lengths does the Sirrus 24 fit?

Osprey builds it on a women's-specific harness covering a 15-19 inch torso range, and it's a true women's construction rather than a shortened unisex frame. Reviewers with short torsos note the top of the LightWire frame can sit close to the back of the head, so try it on loaded before a big trip if you're at the low end of that range.

Does the Sirrus 24 come with a rain cover?

Yes — a fitted rain cover is included and stows in its own pocket, which is notable because the pricier Osprey Tempest doesn't include one. That matters here, since the suspended mesh back does nothing to keep rain off the packbag itself.

How much weight can it comfortably carry?

Osprey doesn't publish a maximum load for the Sirrus, but the LightWire frame and real hipbelt handle typical day loads without strain. Keep in mind the suspended AirSpeed mesh curves into the packbag, so usable space is a bit less than the 24 L rating implies once you add bulky layers.

Is it comfortable in hot weather?

This is the pack's headline feature: the AirSpeed suspended mesh holds the entire packbag off your back, and it ventilates better than any other women's daypack this size. The trade-offs are weight — at 2.69 lbs it's heavier than the Tempest 22 — and a mesh panel that's harder to repair in the field than foam.

What do owners complain about?

The most common gripes are shoulder-strap mesh that can rub at the armpits and less usable interior space than the 24 L label suggests because of the curved back panel. On the plus side, Osprey's All Mighty Guarantee means the company will repair or replace it for the life of the pack.

Daypack

~$190

Osprey

Osprey Sirrus 24

Name: Osprey Sirrus 24
Brand: Osprey
Price: 190 USD
Availability: InStock
Rating: 4.5 (11 reviews)

★4.5(11 reviews)

The Sirrus is the women's-fit Stratos and the ventilated counterpart to the Tempest: a suspended AirSpeed mesh panel rather than contact foam, plus an included rain cover and a heavier 210D honeycomb shell over a 420D base. It is the day pack in Osprey's women's line for hot weather and long days.

Approx. price

~$190

Capacity

24 L

Weight

2.69 lbs

Best For

Women on long, hot day hikes where back ventilation matters most

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Specifications

What do these specs mean? →

Type

Daypack

Frame Type

Internal Frame

Capacity

24 L

Weight

2.69 lbs

Max Recommended Load

Not specified by Osprey

Torso Fit

Women's fit, 15-19 in

Material

210D recycled honeycomb nylon with 420D recycled nylon base

Back Panel

AirSpeed suspended mesh over LightWire frame

Warranty

Osprey All Mighty Guarantee (lifetime)

Raincover Included

Yes

Fits BV500 Bear Canister

Sizes Available

Capacity	Price	Weight
24 Lthis pack	$190	2.69 lbs
34 L	$215	—
36 L	$235	3.16 lbs
40 L	$250	—

Features

Ventilated BackHydration SleeveHipbelt PocketsRaincover Included

Pros

✓The AirSpeed suspended mesh is the best-ventilating back panel available in a women's daypack this size.
✓A rain cover is included, which the pricier Tempest does not offer.
✓A 420D recycled base is real reinforcement on the panel that takes the most wear.
✓The 15-19 in torso range is genuinely women's-specific rather than a shortened unisex fit.
✓Hipbelt pockets are included and sized for a phone.
✓A 36 L sibling shares the same suspension for overnight use.
✓210D honeycomb nylon is more durable than the 100D fabrics on the lighter Osprey daypacks.
✓Osprey's All Mighty Guarantee applies.

Cons

✗At 43 oz it is the heaviest pack in this comparison group and 8 oz heavier than the Tempest 22 for 2 L more.
✗$200 is high for 24 L, and the Gregory Juno 24 undercuts it at $150 and 31 oz.
✗The suspended mesh consumes depth, so usable volume is less than 24 L implies.
✗No manufacturer maximum load is published.
✗The 36 L size has no independently measured weight published.
✗The mesh panel is harder to repair in the field than a foam panel.
✗The frame makes it bulky to pack inside luggage.
✗Current pricing and the full Stratos/Sirrus size run are poorly documented; only the 24 and 36 could be confirmed.

Common Questions

Compare the Osprey Sirrus 24

vs Osprey Kyte LT 45 vs Osprey Stratos 24

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24 LSuspended Mesh BackRaincover IncludedVentilated back

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22 LWomen's FitHipbelt PocketsVentilated back

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Capacity

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24 L2.5 L Reservoir IncludedSuspended Mesh BackVentilated back

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Frame

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24 LWomen's Fit2.5 L Reservoir IncludedVentilated back

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25 L1.7 lbsFive SizesVentilated back

Weight

1.7 lbs

Capacity

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Frame

Internal Frame

Also in 15 L / 20 L / 22 L / 30 L

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