In 2009, Melissa Kieling, a single mother, developed a folded ice pack that can be directly frozen, embedding a patented frozen gel into the ice pack fabric, so that it can directly freeze food and drinks. Celebrities such as Anne Hathaway, Martha Stewart, and Cameron Diaz have all been users of Packit, which is now sold in more than 40 countries.

Compared with conventional ice packs, Packit's biggest selling point is, of course, its patented technology - foldable freezing gel, the ice pack is put in the refrigerator, frozen overnight, and can be used directly the next day, without adding additional blue ice or ice packs, suitable for breast milk preservation. When not in use, the Packit cooler pack can be folded to save space.

The Packit cooler pack is rich in color and stylish, with a solid black look that is more resistant to dirt, and a more pleasing style with a color block. The ice packs are made of multi-layer canvas, all of which have passed SGS testing. The inner tank is waterproof and cold, and the cryo gel will not seep water into the inner lining, but the canvas will feel cool on the outside. There is a detachable clasp above the ice pack that can be hung on a trolley.

The Freezable Breastmilk and Formula Cooler is generous and delicate enough to store up to 4 Medela bottles, making it look like a regular makeup bag and can only be carried by hand. The Freezable Baby Bottle Bag looks like a bento cooler bag and is more flexible and can also be used as a baby food bag after weaning. In addition to the smooth zipper at the opening, there is also Velcro, which can be torn off to unfold the ice pack, enhancing the sealing performance and keeping the cold for a longer period of time. However, the space is compact and the capacity is not enough to store 4 bottles, which is not suitable for mothers with a lot of milk.

It should be noted that although the cooler bag is made of high-density oxford cloth, which has a high degree of wear resistance, and the inner layer also has gel and waterproof cloth as cold cushioning materials, avoid storing sharp objects as much as possible, once it cuts the inner wall, it will cause irreversible damage to the ice pack. Packit does not have an official flagship store in China, and it needs to be purchased through overseas shopping, and the price is around 150 yuan.