11. How to use: Just pour the ice pack into an appropriate amount of water (no more than 200ML) and shake it 6-8 times until the liquid in the ice pack solidifies (fill it once, it can be used repeatedly), and put the ice pack into the freezer compartment of the refrigerator for 5- Remove after 6 hours (requires a cooler effect, can extend the freezing time). Put the ice packs into the bag on the side of the ice pack suit in turn. 22. Adapt to most body types: There are 3 adjustable straps on both sides. When wearing, the length of the straps should be adjusted longer. After the head is inserted, adjust the straps to the appropriate length. When taking off, also adjust the length of the strap longer and take it off from the head. 33. Make your body cooler: Physical auto cooling, will provide you with a stronger comfortable cooling effect, cooling can reduce body temperature by 18F. Comes with 24 ice packs and 2 portable ice pack organizers, so you can take it anywhere, replace it anytime, and stay cool! A unisex cooling vest, perfect for the crowd or those working on a hot summer day! A must-have if you work or travel in hot weather! 44. Suitable for all occasions: This evaporative cooling vest is great for relieving summer heat and preventing heatstroke, such as construction, outdoor high-temperature operations, outdoor, amusement park walking performers, truck drivers, couriers, running, cycling, climbing, cooking, etc. 55.