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Foam is the most common material in constructing koozies. Widely available and abundant in supply, foam substances are used because of their malleability and insulating properties. People enjoy the soft, smooth surface that foam can create, which allows the koozies to be held for longer periods without discomfort. Foam is most often used in conjunction with models that fit over cans. Personalized koozies made out of foam are commonly purchased as a bundle because of their inexpensive overall cost. Basic foam is less expensive compared to neoprene and other foam variants, and buying in bulk is an economical option available to many people.
Aside from the most basic foam substance, new foam variants have been adapted for use with koozies. These newer versions of foam can mimic the properties of neoprene without the higher cost. They are used to make koozies for both bottles and cans that reflect higher quality and more durability. Newer foam materials are lighter in weight than the basic foam substance that is most commonly attributed to koozies. While typical designs involve a thin, lightweight foam material, some beverage sleeves are fashioned from a hard foam product. These koozies do not flatten out and can stand without the support of a container.
The newest and most effective material is neoprene. Koozies fashioned with neoprene enjoy the same material that is used to make wetsuits. Neoprene is a type of synthetic rubber that is employed in manufacturing goods and items for the purpose of insulation. Neoprene koozies are high quality, durable, and lightweight. Beverages that are encased with a neoprene sleeve stay colder longer. Neoprene quality is desirable for beverage holders that will be handed out at as gifts, such as with weddings and wedding koozies.
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