40L Hiking Backpack for Men and Women - Lightweight Waterproof Daypack

In this review the Nerlion 40L hiking backpack is examined as a practical, no-frills pack for day hikes, short trips and airline carry use; the bottom line is that it is best for travellers and hikers who need a roomy, weather-resistant bag at a low price. The pack's single biggest reason to buy is its combination of a true 40L capacity with multiple zippered pockets that make organizing clothing and gear straightforward, while the lightweight, tear-resistant nylon keeps overall carry weight low.

Key Features

• Large capacity: The 40L main compartment plus several front pockets and two side pockets let a user pack three outfits and divide gear for quick access.
• Waterproof fabric: Super thick, tear-resistant nylon provides abrasion resistance and helps keep contents dry in light rain.
• Lightweight build: At about 0.9kg the pack stays light on the shoulders so it does not add unnecessary load on multi-hour hikes or travel days.
• Comfort straps: Breathable mesh shoulder straps with generous sponge padding and a chest buckle help stabilize the load and reduce shoulder strain.
• Travel-friendly features: A luggage belt for sliding onto a suitcase handle and a hidden anti-theft back pocket make it suitable for international air travel and transit.

Who It's For

This backpack is aimed at budget-conscious hikers, weekend travellers and commuters who want a capacious, weather-resistant pack that meets most airline size requirements and carries daily and overnight gear easily. Its organization and lightweight materials suit people who switch between hiking trails and airports and need quick access to small items.

It is less suitable for ultralight backpackers seeking technical suspension or for users who need heavy-duty load-bearing frames; some customers reported mixed experiences with strap durability and zipper performance, so those needing long-term rugged reliability may prefer a higher-end pack.

Pros & Cons

Pros

• Spacious 40L layout with multiple zipper pockets keeps clothing and accessories organized.
• Durable-feeling, waterproof nylon sheds light rain and resists tearing on trail use.
• Light weight at about 0.9kg makes it comfortable for travel and day hikes.
• Travel conveniences like a luggage belt and hidden anti-theft pocket add practical value.

Cons

• Some customers reported mixed zipper quality and a few instances of straps breaking or being too short, so heavy-load durability can be variable.

Specifications

Brand	NerIion
Capacity	40L
Weight	Approximately 0.9kg
Material	Thick, waterproof tear-resistant nylon
Compartments	Main zipped compartment, several front zip pockets, two side pockets, hidden back pocket
Carry features	Breathable padded shoulder straps, chest buckle, luggage belt

Our Verdict

The Nerlion 40L is a sensible value choice for travellers and casual hikers who want a roomy, lightweight and water-resistant daypack that organizes gear well and works with airline carry limitations. It offers solid features for the price, though buyers planning heavy, prolonged loads should note reports of mixed strap and zipper durability and may consider a more robust, technical pack.

Frequently Asked Questions

Is this backpack waterproof?
The bag is made from waterproof, tear-resistant nylon suitable for light rain and splashes, but it is not a fully sealed dry bag for prolonged submersion.

Can it be used as carry-on luggage?
Yes, the 40L size and slim profile meet the size requirements for most airlines and the luggage belt makes it easy to attach to a suitcase handle.

How comfortable is it for long walks?
Comfort is good for day hikes thanks to breathable mesh straps and sponge padding, but users carrying very heavy loads should check strap fit and durability.