: Dry, breathable and sweat-wicking
Long durable use: Inner material flexible Anti-hydrolysis food-grade TPU and composite non-fiber cloth，out layer
material Cotton 。
Easy to clean: inner vest wash by hand with water easily, out vest wash by machine.
High cost performance ratio：Just a normal price of clothes, you own a real cooling vest
HOW TO ACTIVATE:Before use the cooling vest ,Put ICE pack into refrigerator more than 12 hours in -10°C , put 10 pcs
ice pack in the incubator, open the zipper , put one pcs ice pack inside the vest , fill 300 ml to
450 ml water into the vest ,lock the zipper , connect the power bank with the switch by
USB socket ,Switch on the vest ,cold water will flow whole vest in a few seconds and all vest cool
downimmediately , immediately ,change the ICE pack from Incubator when the ice pack warm up,
change ice pack once per hour we suggest.