Maelstrom MSCB04 30-Can Collapsible Soft Cooler Bag

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Product guide

Maelstrom MSCB04 30-Can Collapsible Soft Cooler Bag

Collapsible: The Maelstrom MSCB04 soft cooler bag is listed for up to 30 cans and adds a top Velcro access flap and multiple pockets. Its stated 9.9-liter capacity conflicts with that can count, so confirm the usable capacity if sizing is critical.

At a glance

Top Velcro flap offers access without opening the main zipper, according to the listing.
Five pockets are described: two side mesh pockets, two front zip pockets and one back pocket.
The listing describes the bag as foldable for storage and includes an adjustable shoulder strap and bottle opener.

Price

$27.88Save 20%

Reference price: ~~$34.99~~

Price checked: Nov 14, 2026

View offer

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Pros and cons

Pros

Multiple pockets provide separate places for smaller items.
A quick-access top flap can make reaching contents easier without opening the main zipper.
Collapsible construction is intended to make storage less bulky when the bag is not in use.

Cons

Customer feedback is mixed on leak resistance and ice retention, with reports of melted ice leaking and ice melting within four hours.

Technical specifications

13 specifications

Identity
Brand	Maelstrom
Model	MSCB04

Capacity and dimensions
Stated can capacity	30 Cans (330ml each)
Listed capacity	9.9 liters
Dimensions listed	15.75"D x 11.81"W x 3.15"H
Weight listed	1.9 pounds

Materials and protection
Material listed	Polyester, Polyethylene Vinyl Acetate (PEVA)
Water resistance listed	Waterproof
Insulation material	Polyethylene Vinyl Acetate (PEVA)

Design and care
Shell type	Soft
Listed features	Adjustable Strap, Insulated, Leak Proof, Multiple Pocket, Top Velcro Opening
Care instructions	Wipe with Damp Cloth
Color	Black

What to know before buying

Listing details to confirm

The listing details are inconsistent: the title and feature text claim capacity for 30 cans, while the listed volume is 9.9 liters and the listed dimensions are 15.75"D x 11.81"W x 3.15"H. The listing also claims up to 16 hours of cooling, while customer feedback includes reports of ice melting within four hours. Treat capacity, cooling duration and leak resistance as claims rather than assured performance.

What’s in the box

Included

Cooler bag
Bottle opener
Adjustable shoulder strap

Who is it for?

A good fit for

Picnics, beach outings or grocery trips where a collapsible soft-sided bag and several storage pockets are useful.
Buyers who prefer a shoulder-carry cooler with a separate quick-access flap.

Less suited to

Buyers who need a verified capacity or dependable, specified ice-retention duration.
Anyone who needs leak containment to be assured, given conflicting customer reports.

Maelstrom MSCB04 30-Can Collapsible Soft Cooler Bag · photo 2 — Additional product photo 2

Customer reviews on Amazon

4.6 / 5 · 626 ratings

5 stars78%78%
4 stars11%11%
3 stars5%5%
2 stars2%2%
1 star4%4%

Customer feedback highlights perceived capacity, durability and useful pockets, with some customers reporting that it holds drinks and food for a beach outing. Experiences with cooling and leaks are mixed: some say it does not leak, while others report melted ice leaking and ice melting within four hours. For buyers considering the listed 30-can size and up-to-16-hour cooling claim, those reports make the inconsistent capacity and performance claims important to weigh.

Positive themes

Customers praise the capacity, durability and storage pockets.
Some customers report good temperature retention and no leakage.

Negative themes

Some customers report ice melting within four hours and melted ice leaking onto the floor.

Mixed feedback

Leak resistance and cooling performance receive conflicting customer reports.

Frequently asked questions

How many cans does the Maelstrom MSCB04 hold?

The listing claims up to 30 cans of 330 ml each, but its separate capacity entry says 9.9 liters. These details do not align, so confirm the capacity if it matters for your use.

Does this cooler keep ice for 16 hours?

The product description claims food can stay cool for up to 16 hours. Customer feedback also reports ice melting within four hours, so the stated duration should not be treated as guaranteed.

What storage features does it have?

The listing describes two side mesh pockets, two front zip pockets, one back pocket and a top Velcro access flap.

What comes with the cooler?

The listed components are the cooler bag, a bottle opener and an adjustable shoulder strap.