Osprey Ultralight Collapsible Stuff Pack
- Hiking Daypack
- 0.6 cu ft
- regular
- Adjustable
A near-weightless spare bag worth keeping folded in your luggage for the day you need extra capacity and did not want to check a second bag to get it.
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How it ranks among the 21 hiking daypacks we track
4.5★ across 1,100 Amazon ratings, Bayesian-smoothed toward the category average.
1,100 Amazon ratings, weighted on a log scale so huge counts don't drown everything.
400+ bought on Amazon last month.
Brand identity, imagery, description and spec coverage.
The ProductDome score is separate from the Amazon rating shown above: it combines the Bayesian-smoothed Amazon rating with evidence volume, tracked demand, and data quality across the 21 hiking daypacks we track - how the scorecard works · full hiking daypacks data report. Confidence: high - strong rating volume and complete data.Updated 6 days ago. Data-computed, not a hands-on test. Compiled by the ProductDome Research Team.
Overview
The Osprey Ultralight Collapsible Stuff Pack is a 0.329 lb packable day pack that folds down small enough to carry empty and unfolds into a full daypack for souvenirs, gear or an extra outing bag. Built for travelers and hikers who want backup capacity without backup weight.
This is an accessory pack, not a primary bag: its job is to sit collapsed inside a suitcase or main pack until you need a second bag for a day trip or the extra volume gathered on a return journey. Osprey builds it from bluesign-approved, GRS-certified recycled 40D nylon, which is a supply chain and materials detail rather than a performance claim, but it does mean the fabric is held to a documented recycled content standard.
- Weighs 0.329 lbs, folds fully collapsible
- 7.48H x 8.66W x 16.54D inches when expanded
- GRS-certified 100% recycled 40D nylon
- Sternum strap with built-in emergency whistle
Who it's for
Good for travelers and hikers who already carry a main bag and want a lightweight spare for day trips, market runs or gear overflow. Not meant to replace a structured daypack for daily carry, since it has no frame and limited organization.
Strengths and trade-offs
Drawn from this product's published specifications.
- Weighs about 0.329 lbs and folds into its own pocket
- Padded mesh straps for comfort despite the ultralight build
- Sternum strap includes an emergency whistle
- Made from GRS-certified recycled nylon
- No internal frame or back panel structure
- Limited organization beyond two side pockets and a key clip
Performance notes
The padded mesh shoulder straps and adjustable sternum strap (with an emergency whistle built in) give it more comfort than most stuff sacks despite the ultralight build, and the dual stretch side pockets plus internal key clip add basic organization without adding meaningful weight. At 0.329 lbs it is light enough to carry indefinitely without noticing it in your main luggage.
Specifications
| Brand | Osprey |
|---|---|
| Model | 10004894 |
| Dimensions & fit | |
| Item Weight | 5.3 ounces |
| Size | O/S |
| Shoulder to Bottom Hem Length | 7.5 inches |
| Item Dimensions D x W x H | 2 × 6 × 5 inches |
| Apparel Fabric Weight Class | Lightweight |
| Backpack Harness Size | Medium |
| Compatible Device Size Maximum | 16.54 inches |
| Fit to Size Sentiment | Positive |
| Capacity & performance | |
| Storage Volume | 0.6 cu ft |
| Age Range Description | Adult |
| Construction & materials | |
| Material Type | Nylon |
| Shell Type | Soft Shell |
| Outer Material | Nylon |
| Color | Waterfront Blue |
| Apparel Fabric Stretch | No Stretch |
| Included components | |
| Backpack Harness Type | Shoulder Harness |
| Unit Count | 1 |
| Backpack Design | Daypack Backpack |
| Other details | |
| Fit Type | regular |
| Strap Type | Adjustable |
| Apparel Closure Type | Zipper |
| Sport Type | Travelling |
| School Type | Elementary School |
| Number of Compartments | 1 |
| Number of Items | 1 |
| Number Of Pockets | 4 |
| Zippered Compartment Count | 2 |
| Lining Description | Nylon |
| Subject Character | sports |
| Other Special Features of the Product | Water Resistant |
| Product Care Instructions | Hand Wash Only |
| Theme | Outdoor Adventure |
| Item Type Name | Travel |
| Product Style | Ultralight Stuff Pack |
| Recommended Uses For Product | School, Travel, Work |
| Import Designation | Imported |
| Water Resistance Level | Not Water Resistant |
| Pattern | logo |
| Pocket Description | Two elastic side compartments, key clip, padded mesh shoulder straps with adjustable chest strap |
| Style Number | 10004894 |
| Item Shape | Rectangular |
Other Osprey hiking daypacks
How it compares
This product against the closest alternatives we track in hiking daypacks.
| Product | Amazon rating | Ratings | ProductDome score |
|---|---|---|---|
| Osprey Ultralight Collapsible Stuff PackThis product | 4.5 / 5 | 1,100 | 4.4 / 5 |
| ZOMAKE Lightweight Packable BackpackZOMAKE | 4.6 / 5 | 20,000 | 4.6 / 5 |
| EVANCARY Crossbody Bags Small Sling Bag for Men Women Travel Hiking Mini Sling Backpack…EVANCARY | 4.4 / 5 | 7,900 | 4.5 / 5 |
| Pritent Crossbody Bags for Women Men Trendy Sling Bag Backpack Casual Chest Bag with…Pritent | 4.5 / 5 | 6,200 | 4.5 / 5 |
| The North Face Women's Borealis Backpack | 4.5 / 5 | 3,000 | 4.4 / 5 |
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Questions about the Osprey 10004894
Common buyer questions answered straight from the product spec data - no fluff, no "it depends".
How small does the Osprey Ultralight Stuff Pack fold down?
It collapses into its own internal pocket; Osprey does not list a packed dimension, but at 0.329 lbs it is designed to take up minimal space in luggage.
Is the Osprey Ultralight Stuff Pack padded for comfort?
Yes, it has breathable padded mesh shoulder straps and an adjustable sternum strap, despite its ultralight construction.
What is this pack made from?
bluesign approved, GRS-certified 100% recycled 40D high-tenacity nylon.