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Product guide

WATERFLY Crossbody Sling Backpack, 6 L

The WATERFLY Crossbody Sling Backpack is a compact 6 L daypack with an adjustable cross-body strap, several pockets and a dedicated phone pouch. Its listed dimensions make it suited to essentials for walks, day trips and light hiking, rather than buyers needing a larger carry bag.

At a glance

The 6 L capacity and 7 x 3.5 x 15-inch dimensions describe a small sling for essentials, not a full-size hiking pack.
The shoulder strap can be adjusted and attached on either side using the lower D-rings.
A front strap pouch is described for phones with screens under 7 inches, with multiple other pockets for small items.
A side mesh pocket is listed for a bottle up to 2.4 inches in diameter.

Price

$26.34Save 15%

Reference price: ~~$30.99~~

Price checked: Nov 13, 2026

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Pros and cons

Pros

Multiple pockets and compartments provide separate places for small daily items.
The reversible strap setup supports carrying on either the left or right shoulder.
A dedicated phone pouch and side bottle pocket are described for convenient access while moving.

Cons

The 6 L capacity and compact dimensions limit how much bulky gear it can carry.

Technical specifications

32 specifications

Identity and capacity
Brand	WATERFLY
Style number	XB-C29
Bag style	Daypack Backpack
Storage volume	6 liters
Dimensions	7 x 3.5 x 15 inches /18 x 9 x 38 cm
Color	Dark Green
Intended age range	Adult

Organization and carry
Pockets	8
Compartments	5
Zippered compartments	3
Pocket description	Utility Pocket
Strap type	Adjustable, Cross-Body
Harness type	Shoulder Harness
Strap adjustment range	31 ” to 39.5 ”
Phone screen size listed	under 7 inches
Side mesh pocket height	6 inches
Bottle fit listed	2.4 inch(diameter) bottle
Closure type	Zipper

Materials and care
Material listed	Nylon
Outer material	Polyester
Shell type	Soft Shell
Water resistance listed	Water Resistant
Care	Hand Wash Only
Fabric stretch	No Stretch
Fabric weight class	Lightweight

Other listed features
Special features	Adjustable, Bottle Holder, Breathable, Cell Phone Holder, Lightweight
Reversible strap attachment	3 D-rings on the lower part
Earphone access	There is a hidden earphone hole on the front
Fit type	Standard/Comfortable
Pattern	Solid
Shape	Rectangular
Warranty description	3 Year

What to know before buying

Listing details to confirm

Listing details are inconsistent about tablet fit: the main feature text focuses on a phone pouch for screens under 7 inches, while other listing text claims compatibility with 7.9-inch iPad mini and 9.7-inch iPad Air. Confirm fit for the specific device before buying. The 6 L capacity and compact dimensions remain the clearest size guidance.

Who is it for?

A good fit for

People wanting a compact bag for travel, walks, amusement parks or light day outings.
Buyers who prefer cross-body carry and want quick access to a phone and small essentials.
Hikers or day trippers carrying a small bottle and limited gear.

Less suited to

Anyone needing room for bulky hiking equipment or a larger everyday load.
Buyers who need confirmed fit for a tablet or other device larger than a phone.

WATERFLY Crossbody Sling Backpack, 6 L · photo 2 — Additional product photo 2

Customer reviews on Amazon

4.5 / 5 · 48,411 ratings

5 stars73%73%
4 stars16%16%
3 stars7%7%
2 stars2%2%
1 star2%2%

Customer feedback describes the bag as convenient for travel and hiking, with many appreciating its pockets, phone pocket, carrying comfort and capacity for everyday items such as a water bottle. Other feedback says space can be insufficient, which matters given the listed 6 L capacity and compact dimensions. Reported fit is mixed, so body fit and device fit are worth considering separately.

Positive themes

Customers report appreciating the pocket organization and front phone pocket.
Customers describe it as comfortable for all-day carry and convenient for travel or hiking.

Negative themes

Some customers report that the bag does not have enough space for their needs.

Mixed feedback

Customer feedback is mixed on fit and perceived spaciousness.

Frequently asked questions

How much can this sling backpack hold?

The listed capacity is 6 liters, with dimensions of 7 x 3.5 x 15 inches. It is best suited to essentials rather than bulky gear.

Will a tablet fit?

The listing gives conflicting device-fit claims. It describes a phone pouch for screens under 7 inches but also claims compatibility with 7.9-inch and 9.7-inch tablets, so confirm measurements for your device.

Can the strap be worn on either shoulder?

The listing says the adjustable strap can connect to one of three lower D-rings to support left- or right-shoulder carry.

Is the bag waterproof?

It is listed as water resistant, not waterproof. No protection rating or performance conditions are provided.