TOURIT Slim Ice Packs 4 Pack Review: Do They Really Keep Lunch Cold All Day?

If you have ever tried to squeeze a chunky ice pack into a lunchbox that is already packed, you know the problem. There is no room left, and half your food ends up shoved to one side.

The TOURIT Slim Ice Packs are a 4-pack of reusable freezer packs built to fix that specific problem. Each one measures 7 by 4.7 inches and just 0.4 inches thick, so it lays flat against your containers instead of fighting them for space.

I went through a set alongside the manufacturer’s own test panels, 87 owner ratings, and what people report about thin ice packs for lunch boxes elsewhere. At $11.99 for four, these sit at the affordable end of the reusable ice packs shelf.

The short version? For a lunch bag or a small cooler, they hold up through the day. Point them at a full-size cooler and the answer changes quickly.

What I Liked

The slim format drives almost everything good about these packs. Here is what stood out.

The 0.4-Inch Profile Solves The Lunch Bag Space Problem

At 0.4 inches thick, these slide into a narrow lunch bag, an insulated tote, or a portable cooler without eating the space your food needs. TOURIT lists each pack at 7 x 4.7 x 0.4 inches, and the flat shape is the whole point.

A bulky pack in a preschooler’s lunchbox or a slim work bag forces your containers sideways. These lay flat against them instead, which is the difference between a lunch that fits and one that does not.

Cold Retention Holds Through A Full School Or Work Day

TOURIT rates the packs at 8 hours of cold, and owner reports line up with that when the bag cooperates. One buyer packed one at 8am before camp and found it still icy 7 hours later with all the food still cold.

Another reported glass containers staying cold through a full 10-hour shift in a large insulated lunch bag. A third kept drinks cold in a beach cooler for about 4 hours.

That is the realistic range: a school day or a work shift from one pack, provided the bag around it is insulated. For the drink side of that same commute, the LARS NYSØM Insulated Water Bottle stretches the window to 24 hours cold, well past what any slim pack holds.

The Rigid HDPE Shell Avoids The Gel-Pack Leaking Problem

The construction is an HDPE shell over an SAP refrigerant, not a soft gel pouch. That matters more than it sounds, because the standard complaint about this category is leakage.

Over on r/BuyItForLife, one commenter put it plainly: the flexible, bag-type ice packs work best for keeping things cold, “but they inevitably leak out their nasty, cold slime.” A Shipt shopper made the same complaint about cheap gel packs that “sweat and end up making a mess.”

A rigid shell sidesteps that failure mode. TOURIT lists the material as 100% BPA-free and food-grade with leak-proof construction, and the edges have no visible seams that look ready to split after repeated freeze-thaw cycles.

Four Packs Stack Flat And Rotate Through The Freezer

All four sit flat in the freezer instead of taking over a shelf. Stacked together the set comes to about 1.6 inches, which slots into the gap beside whatever else is in there.

The four-pack count also solves a boring but real problem. When one gets left behind at work or school, there is another ready to go the next morning.

TSA-Friendly When Frozen Solid, Which Helps On Travel Days

TOURIT lists the packs as TSA-friendly when fully frozen, on the basis that frozen solid is not a liquid. That makes them workable in a carry-on cooler bag for a flight.

The same applies to a road trip or a picnic where you would rather not deal with loose ice. Cleaning is a rinse after each use, so the turnaround between trips is quick. When a travel day turns into a full weekend, the YETI Hopper M30 soft cooler carries the load these slim packs cannot, holding ice for about two days.

What Needs Improvement

The limits here are mostly about physics and expectations rather than build defects.

Your Lunch Bag Does More Of The Work Than The Pack Does

This is the one that decides whether you love these or return them. The single 1-star review on the listing is exactly that scenario: a smaller, snack-oriented bag where the packs were not cold by the end of a regular 8-hour shift.

Set that against the owner who got 10 hours out of one in a large insulated bag, and the pattern is clear. The pack supplies the cold, but the bag decides how long it lasts.

If your lunch bag is thin fabric with no liner, budget two packs or expect a shorter window.

They Land Smaller And Heavier Than The Photos Suggest

Two buyers flagged expectations. One called them “smaller than I thought” while still rating them 4 stars, and another noted they are “a little bit heavier than expected.”

Neither is a defect, and the dimensions are printed on the listing. Measure against your actual lunchbox before ordering.

One Pack Will Not Chill A Full-Size Cooler For A Weekend

These are built for lunch boxes and small coolers, and the format does not scale. One or two will not cool a big ice chest full of drinks for a weekend.

For that job you want a thicker pack designed for the volume. Expert testing backs the general point that small packs warm up faster than large ones.

They Need A Full Overnight Freeze To Hit The Rated Window

The 8-hour figure assumes the pack went in fully frozen. Freeze them overnight rather than giving them a couple of hours and hoping.

The advice that circulates on Reddit for cold packs is the same: super-chill them before packing rather than moving them straight from the fridge.

How It Compares

Ice packs split into two camps: thin packs shaped for lunch bags, and thick blocks built to hold a cooler for days. These are firmly in the first camp, so the fair comparisons are other slim options.

vs Fit & Fresh Cool Coolers Slim Lunch Ice Packs

This is the closest direct rival: also a 4-pack of slim packs aimed at lunchboxes, listed as best for that job, carrying the same 4.4 rating.

The difference is construction. Fit & Fresh uses flexible gel packs where TOURIT uses a rigid HDPE shell, trading a little conformability for the leak resistance gel packs are known to lose over time.

Pick the Fit & Fresh if you want a pack that molds around odd-shaped containers. Pick these if you have had gel packs split on you before.

vs Cooler Shock

Cooler Shock is the answer to a different question. Serious Eats found it kept drinks cold for nearly 48 hours, comfortably beyond anything a 0.4-inch pack will do.

It is also a thick pack sized for full coolers, which is precisely what will not fit beside your containers in a lunch bag. If you are packing a weekend cooler, buy Cooler Shock and skip this category entirely.

vs Igloo Maxcold Ice Block

The Spruce named the Igloo Maxcold Ice Block its overall top pick for its long-lasting chill and slim profile, which puts it in genuine competition here. It is a larger block, better suited to a mid-size cooler than a lunch bag.

One caution worth knowing: Serious Eats reported that Igloo Ice Blocks were punctured multiple times during testing and started leaking once thawed. That is the exact failure the rigid TOURIT shell is designed around. Once you are shopping in that size class, the YETI Roadie 32 wheeled cooler is the honest step up, holding ice for three days instead of one packed lunch.

One caveat when you shop around: TOURIT sells a second ice pack, a tall 8.75 x 1.5 x 1.25 inch rod. Published test numbers for that model do not transfer to this slim 4-pack.

Final Verdict

The TOURIT Slim Ice Packs do the one thing their shape promises: they keep a lunch cold without stealing the room your food needs.

I am giving them a 4.2 out of 5.

They lose ground for how much the result depends on your bag, and for a format that cannot scale up to a full cooler. The rigid HDPE shell, the 8-hour rating, the flat 0.4-inch profile, and four packs for $11.99 more than cover those limits for the job they are built for.

Bottom line: If you pack a lunch bag or a small cooler most days, these are an easy call. If you are chilling a weekend cooler, buy a thicker pack instead.