Cooler bags generally refer to thermal insulation packs.  It is a bag that can be used by people for outdoor picnics or daily life. It is used to hold various foods and maintain the temperature and freshness of the food. It belongs to a kind of outdoor luggage.  Ice pack, also known as passive refrigerator, is a kind of pack with high heat insulation and constant temperature effect, which has the function of keeping warm in winter and cool in summer, and is multi-purpose to keep cold, keep warm and keep fresh.  In today's pursuit of quality of life, ice packs are loved by more and more people.

Cooler bags mainly have the following functions:

First, it can be used as a mobile refrigerator.

Used for iced beverages, fruits, iced breast milk, and let your baby drink safe milk.  There is also the preservation of food such as tea, seafood, etc., so that you can carry iced drinks, cold drinks, etc. in the car or outdoors, without having to endure warm drinks. It is suitable for driving trips, holiday outings, family picnics, and office workers lunch.

Second, refrigerated transportation of medicines, vaccines and other products.

The cooler bag can not only keep warm and fresh, but also can be folded and stored conveniently. It is a must for life, travel and leisure.

The selection of cooler bag is the key.  The common main materials of ice packs are oxford cloth and nylon cloth. The advantages of these two materials are wear resistance, durability and long service life. Oxford cloth and nylon cloth usually choose densities such as 420D, 600D and 1680D.  longer term.  In addition, more and more fully waterproof cooler bags are popular. They are made of TPU or PVC with thermal welded seams. These kinds of cooler bags can keep cool for couple of days.