Cool Boxes & Bags

Petromax Cool Boxes and Cooler Bags

Wylies Outdoor World stocks the full Petromax cooler range — German-engineered cool boxes, insulated cooler bags, and cooler backpacks built for serious outdoor use. From a compact 8L bag for a day on the bike to a 50L hard cooler box keeping food cold for 12 days at base camp, every Petromax cooler is built to perform without electricity.

Petromax Cool Boxes for Camping — 25L and 50L

The Petromax KX25 and KX50 hard cooler boxes use double-walled, void-insulated PE construction with 45mm insulation walls. The 25L holds 24 x 330ml cans or 12 x 1L bottles. The 50L holds 70 x 330ml cans or 20 x 1L bottles. Both retain ice for up to 12 days in passive cooling conditions — no electricity, no ice packs required beyond the initial load. Available in Alpine White, Olive, Sand, and Black.

Insulated Cooler Bags for Outdoor Use — Petromax 8L and 22L

The Petromax 8L and 22L cooler bags are built from insulating foam with TPU-coated nylon and waterproof zips. Both include eyelets for carabiner attachment, a padded carry strap, four external pockets, and an integrated bottle opener. The 8L holds 4kg of ice. The 22L holds 10kg of ice. Water-repellent and dirt-resistant surfaces make both bags suitable for multi-day outdoor use in all UK weather conditions.

Cooler Backpacks for Hiking and Cycling — Petromax 17L and 27L

The Petromax 17L cooler backpack keeps ice for 6 days and holds 6 x 1L bottles upright. The 27L keeps ice for 8 days and holds 13 x 1L bottles horizontally. Both use TPU-coated nylon with waterproof zips, adjustable shoulder straps, chest strap, and padded back panel. Available in Dark Grey, Olive, and Sand — designed for hiking, cycling, and festival use where hands-free cold storage matters.

Petromax Cooler Box Accessories for Camp Use

Every Petromax cooler box is designed as a modular camp workstation. The ripstop fabric seat cushion (available for 25L and 50L) attaches via a 4-point press-stud system, turning the box into a camp seat. The plastic chopping board doubles as an internal divider, keeping food separated and surfaces clean — dishwasher safe. The 4mm stainless steel lock bracket secures the box to a tree or pickup truck bed. The locking plate adds an integrated bottle opener. For the 8L cooler bag, the bicycle strap fastens it securely to a luggage rack for bikepacking trips. The PVC mesh pouch fits inside the 8L or 22L bag, keeping ice separate from food and allowing meltwater to drain through.

Frequently Asked Questions — Petromax Cool Boxes and Cooler Bags

How long does a Petromax cooler box keep ice?

The Petromax 25L and 50L hard cooler boxes retain ice for up to 12 days in passive cooling conditions using double-walled, void-insulated PE construction with 45mm insulation walls.

How long do Petromax cooler backpacks keep ice?

The Petromax 17L cooler backpack keeps ice for up to 6 days. The 27L cooler backpack keeps ice for up to 8 days. Both use TPU-coated nylon with insulating foam construction.

What colours do Petromax cooler boxes come in?

The Petromax 25L and 50L cooler boxes are available in Alpine White, Olive, Sand, and Black. Petromax cooler bags and backpacks are available in Dark Grey, Olive, and Sand.

Can you attach a Petromax cooler bag to a bicycle?

Yes. The Petromax bicycle strap is designed specifically to fasten the 8L cooler bag to a standard luggage rack using velcro fasteners. It is weather-resistant and compact for bikepacking use.

Are Petromax cooler boxes food safe?

Yes. Petromax cooler boxes use food-safe PE construction throughout. The chopping board and divider accessory is also food safe and dishwasher safe.

Wylies Outdoor World's owner Drew is happy to help you choose the right Petromax cooler for your trip. Get in touch before you buy.