WATERFLY Packable Hiking Daypack 20L
- 20 liters, 4 pockets, 4 compartments
- 290 g, folds to 8.7 x 6.3 inches
- 16.9 x 11.4 x 5.5 inches unfolded
- Nylon, water resistant, zipper closure
- Shoulder straps, cord detail
Last refreshed Sep 9, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A packable nylon daypack in teal that folds into a small bundle for travel and short hikes. The device size field looks like a copied dimension, so ignore it.
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ASIN: B087R37LZ2Model: ONJ01Category: Hiking Daypacks
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Overview
Folding down to a compact square, this nylon daypack opens into a lightweight bag with four pockets and four compartments. Shoulder straps and a zipper handle the carry and the closure.
Low weight and a folding shape are the reasons to take it as a spare bag on a trip. It is not padded and not built for loads, and the listing's laptop number repeats its own length.
Who it's for
A traveler wanting a light bag for day trips or short hikes that folds away. Hikers who need support or padding should choose a structured daypack.
Pros and cons
- Folds to a small bundle
- Four pockets and compartments
- Water resistant fabric
- Padding not listed
- Laptop size entry unreliable
- Load rating not listed
Performance notes
Thin nylon takes the shape of its load, so comfort depends on how it is packed. Water resistance helps in light rain, but seams are not described as sealed. Without a frame, heavy loads pull on the shoulders.
Specifications
| Brand | WATERFLY |
|---|---|
| Model | ONJ01 |
| Dimensions & fit | |
| Size | 16.9 x 11.4 x 5.5 inches (unfolded), 8.7 x 6.3 inches (folded) |
| Item weight | 290 g |
| Item Dimensions D x W x H | 6"D x 10.75"W x 17"H |
| Capacity & performance | |
| Storage Volume | 20 liters |
| Construction & materials | |
| Material Type | Nylon |
| Color | A-teal Blue |
| Other details | |
| Strap Type | Shoulder Strap |
| Water Resistance Level | Water Resistant |
| Number of Compartments | 4 |
| Number Of Pockets | 4 |
| Apparel Closure Type | Zipper |
| Lining Description | Nylon |
Closest rivals on specs
ZOMAKE Lightweight Packable Travel Daypack- Item Weight 0.64 vs 0.49 pounds (+31%)
AMJ Crossbody Sling Bag Chest Daypack- Item Weight 0.64 vs 0.55 pounds (+16%)
- Storage Volume 0.7 vs 0.6 cu ft (+17%)
G4Free TN0124 Packable Hiking Backpack 20L- Item Weight 0.64 vs 0.38 pounds (+68%)
Frequently asked questions
Will a laptop fit in the WATERFLY packable backpack?
The listing shows a device size of 16.9 inches, which matches the bag's own unfolded length, so treat it as unconfirmed.
How small does the WATERFLY packable backpack fold?
The listing gives 8.7 x 6.3 inches folded.
Is the WATERFLY packable backpack waterproof?
No. It is listed as water resistant nylon.