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Product details

The Verdict

The Maelstrom 36-can insulated cooler backpack is a high-capacity, leak-proof solution designed to keep your food and drinks cold for up to 16 hours. It combines practical organization with ergonomic support, making this insulated cooler backpack a reliable choice for hikers, campers, and beach-goers.

Why We Love It (Key Features)

  • Reliable Temperature Control: Thanks to advanced seamless hot pressing technology, this bag is fully leak-proof and maintains internal temperatures for up to 16 hours, ensuring your supplies stay fresh throughout the day.
  • Ample Storage Capacity: With a 34-liter capacity capable of holding 36 cans, the interior is split into double insulated compartments. Multiple exterior pockets, including a top zipper, front cutlery bag, and hidden back pocket, keep your gear neatly separated.
  • Outdoor-Ready Functionality: It includes thoughtful details like a detachable bottle opener, five webbing holes for carabiners or camping lights, and a stretch cord on the shoulder strap to keep your sunglasses within easy reach.
  • Ergonomic Carry System: Designed for comfort during long treks, the backpack features padded back support and adjustable, breathable shoulder straps. The chest buckle also integrates a survival whistle for added peace of mind.

Pros & Cons

Pros:

  • Impressive 34L capacity holds up to 36 cans.
  • Leak-proof design prevents messes during transport.
  • Keeps contents cold for up to 16 hours.
  • Includes survival whistle and integrated bottle opener.

Cons:

  • Larger profile (13.65” x 7.8” x 19.11”) may be bulky for short or light-duty use.
  • Requires adequate storage space when not in use due to its structured design.

Who Should Buy This?

This backpack is best suited for outdoor enthusiasts who need a hands-free way to transport a significant amount of food and beverages. If you frequently head out on day-long hikes, beach trips, or group camping excursions where keeping items cold and organized is a priority, this pack offers the durability and storage space necessary to handle your gear.

Frequently Asked Questions

How long will this insulated cooler backpack keep items cold?

The Maelstrom cooler is designed to keep your food and drinks cold for up to 16 hours, provided the insulated compartments are used properly.

What is the total capacity of the bag?

This backpack has a 34-liter capacity and is specifically designed to accommodate up to 36 cans, along with various pockets for cutlery and personal essentials.

What safety features are included in the design?

For added security during your outdoor adventures, the adjustable chest buckle on the shoulder straps doubles as a functional survival whistle for emergencies.

Maelstrom 36-Can Insulated Cooler Backpack for Outdoor Trips

Maelstrom 36-Can Insulated Cooler Backpack for Outdoor Trips

Maelstrom 36-Can Insulated Cooler Backpack for Outdoor Trips

Maelstrom 36-Can Insulated Cooler Backpack for Outdoor Trips

8 reviews 4.9
Customer reviews sourced from Amazon
  1. LionHippo on Jul 3, 2025
    EXCELLENT

    5.0 out of 5 stars It feels like it's good quality. ✅ Many pockets with duol zippers. ✅ I have gone through 4 bags over the last 7 years. Each one got a little better. Although my last one after about a month, I was disappointed in the quality. And after only a year it started coming apart. The one prior was great except the strap broke. I even had it taped together. I contemplated getting the same bag again but I didn’t.This one though. This one checks all the boxes. It had multiple water proof and lined pockets (3). The outside feels like a football. It’s a very unique feeling material but it’s not cloth. So this may break down in the future. I’ll update in about a year.It has dual zippers on the important pockets which the last one lacked and so my stuff would fall out when I would open the front.The size is good. I fit two 1-gallon milks jugs with ice packs in the main compartment.I hope this one lasts.Variation: Color: Orange

  2. Nika on Aug 10, 2025
    EXCELLENT

    5.0 out of 5 stars Love it! I’m so happy with buying this. I work 12hr shifts and don’t eat after dark, so I need to pack food for an entire day, not just lunch. I was frustrated with my “large tactical” lunchbox not being large enough for the healthy eating I’m trying to accomplish each day. I took a change on buying this for a great price vs a very expensive alternative. It matches my other bag and has nice backpack straps. Being easy to carry for my job in EMs is important. It has a large opening and great places to put carabiners if I need to. Loving that! The zippers have nice tabs on them to use. Win! It’s insulated and I anticipate keeping things cool with the cold packs I have. It’s easily as well made as my former lunch bag.Variation: Color: Orange

  3. Gerard B. on Apr 7, 2026
    EXCELLENT

    5.0 out of 5 stars Stays cool. Roomy inside. Extra outside pockets Pros:Looks goodSeems to be sturdy construction.Stays coldPlenty of outside pockets.Can use ice or ice packsLarge backpack sized main storage spaceSturdy straps with extra clip on the front side to keep the straps over your shouldersNo real cons, but keep in mind that the bag collapses if not fully loaded.Variation: Color: Black

  4. Andrea on Jun 8, 2026
    EXCELLENT

    5.0 out of 5 stars Motorcycle Wet Weather Backpack I’m using it as a wet weather motorcycle backpack so this review is only on how leakproof it is for keeping the inside dry. I have a smaller drybag I was previously using that is too small for my needs and I was also over the rolling everytime I needed to get in it.I was a little skeptical at first but after 2 1/2 months of use in varing amounts of rain (and not rain), my stuff inside has stayed dry. Not once has rain leaked in the main compartment and gotten my stuff wet – I typically have clothes and my lunch box in there. I don’t use any of the other compartments but when I remembered to check them, the lid ones were also dry but the side and front ones were damp near the zippers (I didn’t expect those to remain dry and they are still drier than I thought they’d be so no loss for my use). For reference, my commute is 25min in and up to 50min out, mostly freeway.It’s probably as aerodynamic as a regular backpack, which is not bad, and doesn’t interfere with my full face helmet at all. I like the chest strap, it helps keep it from moving around at freeway speeds. The webbing on the straps hold my action camera molle mount nicely and at a decent angle/height. I like the white with blue and black accents.My only complaints are that the mesh padding on the back holds water and takes quite awhile to dry – it’s still damp after my 10hr shift if it was really raining – and the shoulder strap ends flap in the wind on the freeway. Neither are dealbreakers as without the mesh padding it probably wouldn’t sit as comfortably and I can tie the straps off to keep the from flapping.Overall, I’d say it’s worth the money for my use. Hoping it lasts for a couple years at least, seems decently sewn together.Variation: Color: White

  5. L. Cabanilla on Jun 11, 2026
    GOOD

    4.0 out of 5 stars Good for a day hike. Good for hiking. It is literally a backpack cooler. Keeps drinks cold. The time it takes for it to stay cold depends on the amount of ice you put in. I would suggest using iced water bottles. Water resistant. I would put a cloth inside before putting ice packs just so the moist does not get through your back. It has a lot pf pockets. The top part is for keeping food warm (4th photo). Enough space for 2 .52 L food container.The material is well made. The zippers opens in different directions.You can put your wallet or phone (3rd photo) but I would recommend putting it in a ziplock.Variation: Color: Grey

  6. Courtney on Jul 17, 2026
    EXCELLENT

    5.0 out of 5 stars Great quality cooler that keeps things cold for long periods of time and provides a lot of space. Super great quality cooler. Love the convenience of a backpack, it keeps drinks cold for long periods of time, and it has a ton of space. I would buy this cooler again and I’ve recommended it to a few people.Variation: Color: White

  7. Jen on Jul 27, 2026
    EXCELLENT

    5.0 out of 5 stars Wow The cooler backpack was bigger than i thought. It is going to be a great addition to our camping and hiking trips. Straps are comfortable, lots of room for everything plus. Love itVariation: Color: Black

  8. Jeff Dioclese on Aug 9, 2026
    EXCELLENT

    5.0 out of 5 stars Keeps drinks cold all day I’ve used this for multiple beach trips and it’s fanatic. Will hold ice all day in direct sun (most of the ice melts) and the drinks remain cold. The side pockets are all insulated and can hold cell phones or snacks.The exterior doesn’t let Sand or dirt cling to it, with the exception of the back mesh padding which a pat and brush down by hand cleaned off most of the Sand. Very comfortable to wear even if the main compartment is filled and the weight is significant – never felt like it was at risk of tearing / breaking.Variation: Color: Grey

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