Each is frozen in any freezer until you need to wear it. You can transport it in any standard ice chest or cooler. The vest and the collar both have individual Ice Mats that can be easily removed or replaced to control the amount of cooling required. As the ice thaws you can replace the cells with new ones to continue using the same vest or collar all day long. The vest can be used up to two hours without refreezing.
The vest will hold up to 10 inserts at one time.
Kold Vest comes with 10 ice mats.