Basic information：
1.Product size:
2.Weight:
3.Materials:
Function：
Based on normal version, PCM ice bag isadded to make the coolingtime longer. Especially under extremehigh temperature, with PCM ice bag, the cooling vest can be keptthe temperature at no more than 28°C for 4-5 hours.
How to use：
1.Put the ice pack that matches the vest in the refrigerator and freeze it for 2 hours.
2.Before putting it on, put the frozen matching ice pack into your back.
Packing information： Bulk Carton
