Waterfly Ultra Lightweight Foldable Backpack 20L: Packable Daypack for Outdoor Adventures
Product description
What matters most
This is a compact 20L daypack designed for everyday outdoor use, from hiking to travel. On the surface, its standout feature is the ability to fold into its own pocket, making it easy to stash away when not in use. If you prioritise lightness and portability, this bag earns points simply for weighing in at around 280g.
The essentials
Made from tear-resistant and water-resistant nylon, the backpack is built to withstand light rain and abrasion without turning stiff in the process. It’s straightforward to clean and designed to resist fraying, which matters when you’re taking it on mixed terrain.
What stands out in use

There are multiple compartments to help organise your gear. The main pouch is roomy enough for an iPad or A4 notebook, while the front pocket keeps everyday items like keys, cards, earphones and lipstick easy to grab. A further front section with a combination of zipper and magic tape offers quick access to smaller items.
How it feels on the shoulders
The straps use breathable mesh, which helps reduce sweat on longer carries. A side buckle distributes weight to keep the pack steady and centered—helpful if you’re moving quickly on uneven ground or weaving through crowds while travelling.


When it makes sense to buy
If you want a spare pack for day trips, gym sessions, or travel that doesn’t add much weight to your luggage, this Waterfly model can be handy. It’s particularly practical for travellers who need a compact option that folds away neatly when not in use.

When it might not be the best choice
This isn’t a heavy-duty hiking rucksack. For tougher terrains, heavier loads, or full-on expeditions, you may want something with larger capacity and more rugged reinforcement. It may also feel a bit lightweight if you carry bulky gear for extended periods.
Before you buy: what to check
Think about what you typically carry on day trips. If you need to separate liquids or electronics more securely, you’ll want to test how well the compartments stay organised during movement. Also, consider the size of the pack when folded and whether the 20L capacity meets your usual day-use needs.
A practical comparison to other approaches

This bag sits between ultra-lightweight daypacks and more feature-rich travel backpacks. If you value minimalism and portability, it’s a sensible compromise. If you expect to carry heavier loads or require advanced suspension, you might prefer a different setup. In short, it’s a practical option for lighter, short-duration outings rather than heavy, all-day excursions.


Should you buy it?
Why it makes sense if you prioritise portability and simple organisation
For light adventure days, a spare bag in your suitcase, or occasional use when you don’t want to tote a bulky pack, this model delivers on weight and packability. It’s not perfect for every scenario, but it does what it sets out to do without fuss.
Why you might want to pass

If you need a rugged, high-capacity or fully-featured daypack, this bag may fall short. Also, if comfort under heavy load is a priority, the lightweight construction could limit long-haul support.
Who it’s for
Ideal for casual hikers, travellers who want a secondary bag, or gym-goers who need a light pack on busy days.
Who should avoid it


If you regularly carry larger items or you expect demanding weather and terrain, this pouch may not meet your performance expectations.

Quick guide to use
- Pack light items in the main compartment and separate essentials in the two front pockets for quick access.
- Fold the bag back into its own pocket when not needed to minimise clutter in luggage or a backpack.
- Opt for the breathable shoulder straps to help keep perspiration under control during warm days.
FAQ
- How much does it weigh? Approximately 280g.
- What is the capacity? 20L.
- Is it waterproof? The fabric is water-resistant and tear-resistant, suitable for light moisture but not heavy downpours.
Technical snapshot

- Capacity: 20L
- Weight: 280g
- Material: Tear-resistant, water-resistant nylon fabric
- Features: Foldable into its own pocket, front pockets with zipper and magic tape, breathable mesh straps, side weight distribution buckle
Final note
If you value a lightweight, packable option for day trips and travel, this Waterfly backpack offers a straightforward, practical solution. It won’t replace a heavy-duty daypack, but for its niche it delivers sensible features without excess.
What to know before you buy
Consider how often you’ll use it as a secondary bag and whether the 20L capacity aligns with your typical day-to-day gear. For quick trips and light loads, it’s a reasonable, no-nonsense choice.
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