“The HyperKewl Ultra Sport vest from TechNiche is a high-tech upgrade to the cooling properties of a soaked t-shirt.
It uses a sophisticated fiber weave to retain water in the vest, letting it slowly evaporate and keep you cool. To activate it, you simply soak it in water for a couple of minutes, squeeze out the excess, and put it on.
We found that the HyperKewl vest works amazingly well under a mesh or perforated leather jacket. The length of time the soaking works depends on the temperature, humidity and the airflow through your jacket–expect anywhere from one hour to all-day.
Fortunately, the vest can be soaked in any nearby sink or you can bring a plastic bag and fill it with water. In two minutes, it is ready to go again. You need a high-airflow jacket, but you’ll already want one on a hot summer day”.
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