Osprey Stratos 24 vs Osprey Sirrus 24
Quick take: The Osprey Stratos 24 is lighter (2.6 vs 2.69 lbs).
| Spec | Osprey Stratos 24 | Osprey Sirrus 24 |
|---|---|---|
| Price | $190 | $190 |
| Rating | 4.6★ (109) | 4.5★ (11) |
| Type | Daypack | Daypack |
| Frame Type | Internal Frame | Internal Frame |
| Capacity | 24 L | 24 L |
| Weight | 2.6 lbs | 2.69 lbs |
| Max Load | 30 lbs | Not specified by Osprey |
| Torso Fit | 17-22 in adjustable | Women's fit, 15-19 in |
| Material | 210D recycled nylon | 210D recycled honeycomb nylon with 420D recycled nylon base |
| Back Panel | AirSpeed suspended mesh over LightWire perimeter frame | AirSpeed suspended mesh over LightWire frame |
| Adjustable torso | Yes | No |
| Ventilated back | Yes | Yes |
| Raincover included | Yes | Yes |
| Hipbelt pockets | Yes | Yes |
| Removable lid | No | No |
| Hydration sleeve | Yes | Yes |
| Fits BV500 bear can | No | No |
| Warranty | Osprey All Mighty Guarantee (lifetime) | Osprey All Mighty Guarantee (lifetime) |
Pros & cons
Osprey Stratos 24
- ✓The suspended mesh back is the whole pitch, and it delivers — hot-climate hikers report dramatically drier shirts than any foam-back pack.
- ✓An included raincover at $160 beats the Talon's bring-your-own approach.
- ✓The perimeter frame transfers 25-30 lb loads to the padded hipbelt better than any frameless daypack.
- ✓The adjustable torso plus fixed frame fits a wide range without feeling vague.
- ✓Thick harness and hipbelt padding make it the comfort pick for all-day carries.
- ✓Trekking pole attachment and multiple organization pockets come standard.
- ✓Owners report years of heavy use with minimal wear on the 210D body.
- ✓The lifetime warranty applies as always.
- ✗At 2.6 lbs it's heavy for a daypack — the Talon does 90% of the job at 70% of the weight, as versus threads repeat endlessly.
- ✗The trampoline back bows the packbag, shrinking usable volume noticeably below the stated 24L.
- ✗The rigid frame makes it awkward as a travel/carry-on squish pack.
- ✗The mesh stands the load off your back, which scramblers say hurts balance on technical terrain.
- ✗Bottle pockets angle backward and are hard to reach one-handed.
- ✗The fixed top-zip layout offers less quick outside stash than the Talon's stretch pocket.
- ✗It runs warm everywhere except the back panel itself — the thick padding is a tradeoff.
- ✗Price plus weight make it easy to talk yourself into a full ultralight overnight pack instead.
Osprey Sirrus 24
- ✓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.
- ✗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.