WATERFLY Sling Bag Crossbody Backpack - 18L Travel Daypack

In this review the WATERFLY Sling Bag Crossbody Backpack is evaluated as a compact, versatile option for day trips and travel. The bottom line: it is best for active users who need organized storage without a full backpack, because its 18L large capacity with seven pockets and a padded main compartment fits essentials and a 13 in laptop while staying comfortable on long walks. The pack blends practical features like a hidden back pocket and a water bottle holder into a simple, durable design that suits hiking, airports, and everyday city use.

Key Features

• 18L multi-compartment design: Seven pockets provide defined space so gear, documents and a small laptop stay separated and easy to find.
• Padded main pocket: Protective padding on the back and bottom cushions a device up to 13 in and reduces pressure when worn for hours.
• Innovation umbrella pouch: A zippered mesh net at the bottom holds a wet umbrella or towel, keeping the rest of the bag dry.
• Water bottle holder: A side brace pocket secures a bottle during outdoor activities so it stays steady while cycling or hiking.
• Changeable shoulder strap: The strap reverses for right or left-handed wear and adjusts from about 25.9 to 46.5 in for crossbody or over-shoulder carry.
• Water-repellent linen material: Durable, anti-friction fabric resists wetting and cleans easily after outdoor use.

Who It's For

The sling bag is aimed at travelers, commuters and day hikers who want a compact carry option with organized pockets and a comfortable padded back. Its ability to hold a 13 in laptop and multiple pockets makes it useful for airport transit, theme park days, or short overnight trips when a full backpack would be overkill.

It is less suitable for users who need large expedition packs or those carrying full camera rigs or heavy loads beyond 18L. If you require a waterproof technical pack for multi-day hikes, or very large capacity, consider a larger backpack designed for extended treks.

Pros & Cons

Pros

• Well thought out internal layout with seven pockets improves organization and access during travel.
• Comfortable wear thanks to breathable, soft padding on the back and bottom for longer use.
• Versatile strap system allows left or right shoulder carry and multiple wear styles including crossbody and chest bag.
• Durable, water-resistant linen-like fabric and a bottom mesh pouch for wet items add practical durability.

Cons

• At 18L it is roomy for day use but not suited to users needing large overnight capacity for extended trips.
• The water resistance helps against light wetting but is not a full waterproof solution for heavy rain.

Specifications

Capacity	18L
Main pocket fit	Up to 13 in laptop
Compartments	Seven pockets including hidden back and shoulder strap pocket
Strap length	Adjustable approx 25.9 - 46.5 in (66 - 118 cm)
Special pockets	Mesh umbrella pouch and side water bottle holder
Material properties	Water repellent, anti-friction linen-like fabric

Our Verdict

The WATERFLY Sling Bag Crossbody Backpack is a practical, value-conscious choice for anyone needing a well-organized daypack with device protection and outdoor-minded features. It balances comfort, durability and clever pockets for travel and daily use, making it a smart pick for commuters and casual hikers who want tidy storage without a bulky pack.

Frequently Asked Questions

Can the main pocket hold a small laptop?
Yes, the padded main pocket is sized to accommodate up to a 13 in laptop while providing protective cushioning.

Is the bag suitable for rainy weather?
The fabric is water repellent and resists light wetting, but it is not fully waterproof for prolonged heavy rain.

Can the strap be switched for left or right shoulder carry?
Yes, the shoulder strap is changeable and adjustable so it can be worn on either shoulder or as a chest/crossbody bag.