Magic Gel Pains de glace (x5)

Magic Gel ice packs, sold in a set of 5 units, use a flat 19 x 16 cm design that makes it easy to arrange them along the walls of a cooler or between the various food items being kept cold, rather than a single bulky block that would hog precious space. This slim design also lets you slide them into the gaps of a soft insulated bag, whose shape is less regular than a hard cooler.

Each ice pack, with a 350 ml capacity, is simply filled with water before its first use and then frozen like a regular block. Its leak-proof design prevents any leaking once placed in the cooler, unlike some cheap bags of ice cubes that end up as a puddle at the bottom of the container. Once frozen, it releases cold gradually and steadily, for up to 8 hours according to the manufacturer depending on conditions of use, a duration generally confirmed by customer feedback, which tends to mention 5 to 8 hours in real-world use.

Unlimited reuse, simply by putting the packs back in the freezer after each use, makes this an economical solution over a whole season of summer outings, compared to repeatedly buying bags of ice cubes from the supermarket. The flat design also makes storage in the freezer easier between uses, without taking up an entire compartment.

Placed at several strategic spots in a cooler, these ice packs ensure a more even distribution of cold than a single large block concentrated in one place would. Magic Gel also offers a smaller version designed for lunch boxes, to choose based on the intended use. A simple, inexpensive accessory, favored by over 3,000 Amazon buyers, that noticeably improves the cooling performance of any cooler or insulated bag used regularly throughout summer.