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Trail & Terminal

01 — Camp / Roundup

Best cooler backpacks

A backpack cooler trades capacity and ice life for hands-free carry. That is a good trade exactly as far as the trailhead and no further.

By Brijon M.Last updated How we pick
A soft-sided cooler packed with ice at a campsite

The short answer

The YETI Hopper BackFlip 24 is the pick for most buyers: a genuinely leakproof closure, a 24-can capacity, and a harness borrowed from hiking packs rather than from luggage. If you need it to float and shrug off a river day, the IceMule Pro is the better shape.

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Our picks at a glance

Best cooler backpacks -- ranked picks
#ProductBest forKey specPrice
1YETI Hopper BackFlip 24The one that carries like a backpack instead of like a bag with straps. Leakproof closure, tough shell, and the best harness in the category.most buyers, most trips~24 cans, HydroLok zipper
2RTIC Backpack Cooler (30 Can)Most of the performance of the YETI for a fraction of it. Heavier, less refined, and the obvious value pick.the best capacity for the money~30 cans, 2 in closed-cell foam
3IceMule Pro Large (23L)A roll-top drybag with insulation. It floats, it seals completely, and it rolls down small when empty.water, boats and river days23 L, roll-top with air valve
4Hydro Flask Day Escape Soft Cooler Pack (20L)The one you forget you are wearing. Lighter and slimmer than the rest, with a harness built for walking rather than for standing still.the lightest comfortable carry20 L, ~2.5 lb empty
5AO Coolers 24-Pack Canvas Backpack CoolerCanvas, high-density foam, a simple zipper. None of the sealed-system engineering, and a third of the weight and price.a cheap, light, honest soft cooler24 cans, ~1.5 in foam

Ranked by the criteria in how we pick. We hold no live prices, so every button goes straight to the current Amazon listing.

Every pick, in full

The picks

1

Best for most buyers, most trips

YETI Hopper BackFlip 24

The one that carries like a backpack instead of like a bag with straps. Leakproof closure, tough shell, and the best harness in the category.

The thing that separates this from the rest of the category is the harness. Most cooler backpacks are soft coolers with straps bolted on, which means a loaded 30-pound bag hangs off your shoulders and digs in. The BackFlip uses a shaped back panel, a sternum strap and a chest-level adjustment, so weight sits where a hiking pack would put it. Over a mile to a beach or a boat ramp that is the entire difference.

The closure is the other reason to pay for it. A zipper that genuinely seals means the pack can go in a trunk on its side without melting ice water into the carpet, and it means the insulation is not compromised by a gap along the top seam. Ice life is roughly a long day in summer heat, which is honest for the size. For multi-day cold, you still want a hard cooler -- see best coolers for camping.

Specs

  • Holds roughly 20 lb of ice or 24 cans
  • Leakproof HydroLok zipper with a magnetic storage latch
  • ColdCell closed-cell foam insulation
  • Padded shoulder straps, sternum strap and a chest-level load lifter

Good for

  • A properly leakproof closure, so it can be laid flat in a trunk without soaking it
  • The harness distributes a 30-pound load onto the hips rather than the shoulders
  • Shell fabric resists punctures far better than the thin TPU on budget packs

Bad at

  • The zipper is stiff and needs the supplied lubricant, and it stays stiff for the first season
  • The most expensive pack here by a wide margin
  • 24 cans is a day, not a weekend -- this does not replace a chest cooler
2

Best for the best capacity for the money

RTIC Backpack Cooler (30 Can)

Most of the performance of the YETI for a fraction of it. Heavier, less refined, and the obvious value pick.

RTIC has built its whole business on being 80 percent of YETI for 40 percent of the price, and in this category that calculation holds up well. The foam is thick, the shell is tough, and the capacity is larger. If you are carrying it from a parking lot to a picnic table, the differences that justify the YETI price barely register.

Where you notice them is on the two things RTIC did not match. The zipper resists water but will weep if the pack goes on its side, and the back panel is flat padding rather than a shaped frame, so 30 pounds of ice and cans presses into your back on a long walk. Load it with the heavy cans low and against the panel and most of that complaint goes away.

Specs

  • Holds roughly 30 cans without ice, or 20 cans plus ice
  • Two inches of closed-cell foam insulation
  • Puncture- and UV-resistant laminated shell
  • Padded straps with a sternum strap, plus side pockets

Good for

  • More capacity than the BackFlip at a far lower price
  • Two-inch foam genuinely holds ice overnight in moderate heat
  • Side pockets and front bungee take the small items a cooler normally swallows

Bad at

  • The zipper is water-resistant rather than leakproof -- carry it upright
  • Noticeably heavier empty than the competition, which you feel at the end of a carry
  • The back panel is flat foam, so a heavy load presses on your spine
3

Best for water, boats and river days

IceMule Pro Large (23L)

A roll-top drybag with insulation. It floats, it seals completely, and it rolls down small when empty.

The roll-top is the whole design argument. Sealing a drybag closure and then inflating the air layer through the valve gives you a cooler that is waterproof in both directions and buoyant, which is why this is the one you see on rafts and paddleboards. Nothing with a zipper competes on that specific job.

It is also the pack to buy if storage space is a constraint. Empty, it rolls flat and takes a shelf rather than a floor. The cost is access: every time you want a drink you unbuckle, unroll, dig down a tall cylinder, and roll it back. For a day on the water that is fine. For a campsite where people are in and out of the cooler every ten minutes, the zippered packs are much less annoying. Compare the formats in hard cooler vs soft cooler.

Specs

  • 23 liters, roughly 18 cans plus ice
  • Roll-top closure with a buckle, plus an inflation valve for the air layer
  • Fully waterproof PolarLayer insulation sandwich
  • Floats when sealed; packs down flat when empty

Good for

  • Genuinely waterproof in both directions -- it can be dunked, and it will not leak out
  • Floats, which on a river or from a boat is a real feature rather than a gimmick
  • Rolls down to almost nothing empty, so it stores and travels well

Bad at

  • The roll-top is slower to open and close than a zipper, which gets old at a picnic
  • Tall and narrow, so cans go in vertically and small items sink to the bottom
  • The single-wall shape is less puncture-resistant than the laminated packs
4

Best for the lightest comfortable carry

Hydro Flask Day Escape Soft Cooler Pack (20L)

The one you forget you are wearing. Lighter and slimmer than the rest, with a harness built for walking rather than for standing still.

This is the pack for people who actually walk with it. Three of the five picks here are heavy before you put anything in them, and on a two-mile approach that empty weight comes straight out of what you can carry. At around two and a half pounds with a ventilated back panel, this one behaves like a daypack that happens to be insulated.

The insulation is thinner as a direct consequence, and in full sun you will see the difference by mid-afternoon. The mitigation is simple and worth knowing for any soft cooler: pre-chill the pack, use block ice rather than cubes, fill it completely so there is no warm air space, and keep it out of direct sun. Done properly that is a comfortable full day.

Specs

  • 20 liters, roughly 18 cans
  • Welded, leak-resistant construction with a water-resistant zipper
  • Around 2.5 pounds empty -- the lightest pack here
  • Breathable mesh back panel and ventilated shoulder straps

Good for

  • Low empty weight means more of your carrying budget goes to contents
  • A ventilated back panel, which none of the foam-backed packs offer
  • Slim profile sits close to the body instead of levering away from it

Bad at

  • Thinner insulation than the RTIC, so ice life is shorter in direct sun
  • No hip belt, so the load lives on your shoulders above about 20 pounds
  • Fewer external pockets than the price suggests
5

Best for a cheap, light, honest soft cooler

AO Coolers 24-Pack Canvas Backpack Cooler

Canvas, high-density foam, a simple zipper. None of the sealed-system engineering, and a third of the weight and price.

There is a real case for the cheapest competent option in this category, because a backpack cooler is often the second cooler. The chest cooler holds the weekend's food; this carries drinks and lunch to wherever you are sitting. For that job, thick foam and a clean canvas shell are most of what matters.

What you do not get is any load-carrying design. The straps are straps, there is no sternum strap and no hip belt, and 24 cans plus ice is about 25 pounds hanging from your shoulders. For a hundred yards that is irrelevant; for a mile it is not. Buy this one knowing which of those two trips you are actually making.

Specs

  • Holds 24 cans plus ice
  • High-density closed-cell foam, roughly 1.5 inches
  • Vinyl-backed canvas shell with a leak-resistant liner
  • Simple shoulder-strap harness, no sternum or hip belt

Good for

  • Light and cheap, which makes it the easy second cooler to keep in the car
  • Canvas shell is easy to clean and does not hold smells the way coated nylon does
  • Foam is thicker than the price band would suggest

Bad at

  • The harness is basic -- straps on a bag, with no load support at all
  • Not leakproof; condensation and melt will find the zipper if it tips
  • Structure is soft, so it slumps when half empty and cans shift around

01 — Compare

The picks at a glance

Capacity is the spec people shop on and carry comfort is the spec they regret. Both are below, along with whether the closure can actually be trusted on its side.

PickCapacityClosureCarry systemBest for
YETI Hopper BackFlip 24~24 cansLeakproof zipperShaped panel, sternum strapMost buyers
RTIC Backpack Cooler~30 cansWater-resistant zipperPadded straps, sternum strapCapacity for the money
IceMule Pro Large23 L (~18 cans)Roll-top, waterproofSimple strapsBoats and river days
Hydro Flask Day Escape20 L (~18 cans)Water-resistant zipperVentilated daypack harnessLongest walks
AO Coolers 24-Pack24 cansBasic zipperStraps onlyCheap second cooler

02 — Technique

How to get real ice life out of a soft cooler

Soft coolers are judged unfairly because most people use them badly. The insulation in these packs is one to two inches of closed-cell foam against the six inches of rotomolded polyethylene in a hard cooler, so technique carries much more of the result.

  • Pre-chill the pack. Put a sacrificial bag of ice in it an hour before you load, then dump it. A warm pack spends its first hours of ice melting itself cold.
  • Use block ice, or freeze water bottles. Less surface area means slower melt, and the bottles become drinking water instead of a puddle.
  • Fill it completely. Air space is the enemy; pack gaps with a towel rather than leaving them.
  • Keep the melt water in. Cold water is still cold -- draining it to keep things dry costs you hours of ice life.
  • Keep it in shade. Direct sun on a dark shell will roughly halve the useful window.

03 — The honest answer

When a chest cooler is the right answer instead

A backpack cooler buys you hands-free carry and nothing else. For a lot of trips that is not the constraint, and buying one instead of a hard cooler is a mistake.

If the trip is longer than a day

Every pack here is a one-day cooler in summer heat. A rotomolded hard cooler holds ice for several days, and a weekend of food needs that. The honest setup is a hard cooler in the car for food and a backpack cooler for drinks and lunch wherever you end up sitting. The hard cooler field is in best coolers for camping.

If you are feeding more than three people

Twenty to thirty cans sounds like a lot until it is also lunch for four. Capacity in this category tops out well below what a family weekend needs, and overfilling a soft cooler compresses the foam against the contents and makes the insulation worse.

If it never leaves the car

If the cooler goes from trunk to campsite table and stays there, a backpack harness is paying for nothing. A hard-sided cooler in the same money gives you days of ice, a seat, and a work surface.

If you need it to survive a dog

Soft shells puncture. A curious dog, a tent stake in the same trunk, or a dropped knife all end a soft cooler in a way they do not end a hard one. If the dog comes along, see best dog camping gear for the rest of that kit.

04 — Honest limits

What we did not test, and what that means

We have not run a controlled ice-retention test on these packs. Doing it properly means a fixed ambient temperature, identical ice mass and repeated trials, and we have none of that, so we have not published a figure for any pack and have described ice life in ranges instead. Capacities, insulation thicknesses, closure types and empty weights come from manufacturer specifications.

We publish no prices. Soft coolers are promotion-heavy and move around a lot, so a number here would be stale quickly. Every buy link opens a live Amazon search for that model. Our criteria are at how we pick.

Questions

Frequently asked

How long does a cooler backpack keep ice?
Realistically a long day in summer heat, and overnight in moderate temperatures if it is pre-chilled, packed full with block ice and kept in shade. Soft coolers carry one to two inches of foam, against several inches on a hard cooler.
Is a backpack cooler better than a soft cooler bag?
Only if you carry it any distance. The insulation is comparable; what you pay extra for is a harness that puts the load on your back and hips instead of one shoulder. For trunk-to-table use, a tote is fine.
Are cooler backpacks leakproof?
Some are. A sealed zipper like YETI's HydroLok or a roll-top like IceMule's can be laid on its side; most water-resistant zippers will weep. If the pack is going flat in a trunk, buy one of the sealed designs.
What size cooler backpack should I buy?
Twenty to 24 cans suits one or two people for a day. Beyond that the weight on your back becomes the limit before the capacity does, and a hard cooler in the car is the better answer.
Can you put a cooler backpack in a plane's overhead bin?
Empty, most of these are within carry-on size limits and pack flat, especially the roll-top models. Ice and liquids are the problem, not the bag -- the TSA liquid rules apply to the contents.

References

Back up a level

This page sits in Camp -- campsite kit: shelter, sleep, kitchen, light and power.

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