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One deep, airtight compartment that holds 38 cans

A 32L cool bag rucksack with an airtight insulating zip and a single big compartment for up to 38 cans — backed by a one-year warranty.

Maximum simple capacity: one huge sealed space, plus the reassurance of a year's cover.

£59.99
Fast, FREE UK delivery on all orders £30 or more. Orders under £30 pay a flat £3.99 delivery.

If you just want to fit as much in as possible, the PENGDA's 32L single compartment takes up to 38 cans — one of the biggest simple spaces in the range. An airtight insulating zip seals cold air in and moisture out, it's wrapped in tough nylon, and unusually for a cool bag it comes with a one-year warranty.

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38-can capacityA 32L main space — one of the largest single compartments in the range — for a big drinks run.
Airtight zipA sealing zip traps cold air and blocks outside moisture better than an ordinary zip.
1-year warrantySold with a year's cover — a level of reassurance most cool bags don't offer.
Loads of pocketsSide, front, lid and inner mesh pockets organise everything around the big cold core.

About this cooler backpacks

PENGDA 38-Can Cool Bag Rucksack

The PENGDA takes the opposite approach to the divided bags: instead of clever compartments, it gives you one very large, very simple cold space. The 32-litre main compartment holds up to 38 cans, which makes it the bag for a big drinks run — a barbecue, a festival pitch, a boot-load for the campsite — where you just want to get as much cold stuff in as you can.

The detail that lifts it above a plain sack is the zip. It's an airtight, sealing zip rather than an ordinary one, so it traps cold air inside and keeps outside warmth and moisture from creeping in around the closure — a common weak point on cheaper cool bags. The nylon shell is waterproof and hard-wearing, and it comes with a one-year warranty, which is rare at this price and tells you something about how it's built.

Around the big central space you still get proper organisation: two side mesh pockets, two front zip pockets, a lid pocket and an inner mesh pocket for the flat items, plus a bottle opener on the strap. Padded, adjustable straps make a fully-loaded 38-can bag manageable. It's the practical choice when capacity, not compartments, is what you're after.

The details

Specifications

BrandPENGDA
ColourBlack
Capacity32L
Holdsup to 38 cans
InsulationKeeps contents cold for hours with ice packs
Outer materialNylon with an airtight insulating zip
Water resistanceWaterproof
Dimensions33 x 19 x 45 cm
Weight800 g
StorageAn airtight insulating zip, two side mesh pockets, two front zip pockets, a lid pocket and inner mesh pocket and a strap bottle opener
CareWipe clean
Country of originChina

PENGDA 38-Can Cool Bag Rucksack

£59.99

Free UK delivery · easy returns · secure checkout

Got questions?

Frequently Asked Questions

Why choose one big compartment over a divided bag?

Because sometimes you just want to cram in as many drinks as possible. One 32L space with no internal walls is the most flexible for a big cold load; a divided bag is better if you specifically need to keep hot food and crushable snacks separate.

What does the airtight zip actually do?

It seals the main compartment more tightly than a standard zip, so less cold air escapes and less warm, moist air gets in around the closure. On a hot day that closure is where a lot of cool bags lose the battle, so it's a genuinely useful upgrade.

What does the one-year warranty cover?

It's the manufacturer's cover against faults over the first year. Keep your order confirmation, and if something fails in normal use, get in touch and we'll help you sort a repair, replacement or refund alongside your statutory rights.

Do you deliver, and how long does it take?

Yes. Your delivery estimate for your address is shown at checkout before you pay, so you can see the timing first. Delivery is free UK-wide on orders over £30, with a flat £3.99 charge under that.

Can I return it if it isn't right?

Yes — you can return it in line with our returns policy for a refund. Keep the packaging where you can, as it makes the return tidier, and get in touch and we'll help.

The complete guide

PENGDA 38-Can Cool Bag Rucksack: the maximum-capacity choice

3 min read Frostline

The PENGDA is the bag for the trip where the answer to 'how many drinks?' is 'all of them'. Here's how to use it well.

Fill the big space, then seal it

The airtight zip only helps if you actually close it fully and keep it shut. Pack the 32L space, zip it right to the end, and open it as little as possible on a hot day to keep the cold air where it belongs.

Layer ice through the load

With 38 cans' worth of space, one ice pack at the bottom won't cut it — spread several ice packs through the load so every layer stays cold, not just the bottom row.

Keep your warranty handy

It's covered for a year, so save your order confirmation. Wipe the liner, air it open between trips, and it's built to outlast the warranty comfortably.

Browse all cooler backpacks

Not sure this is the right size for your days out?

Tell us how many people you pack for and how long you're out, and we'll point you to the right bag in the range — honestly, even if that's not this one.

Still deciding? Ask us a question and we'll help you choose.

PENGDA 38-Can Cool Bag Rucksack £59.99