Alpinestars Cooling Vest in grey

Wearing breathable or mesh garments in really hot weather makes sense, but there comes a point where the oncoming air is so warm that you won’t really cool down. And when it’s that hot, the only thing that is going to reduce your temperature is a cooling vest like this one from Alpinestars.

 

You simply fill the vest with about 500ml of tap water. As the body heats up, the water in the vest starts to evaporate. Simply put, this accelerates and enhances the sweating process, thereby significantly reducing the body’s temperature.

 

It doesn't require cold water, ambient temperature water is fine and the cooling happens straight away. You and your jacket remain dry so it is not, as some people suggest, just like dunking your T-shirt in cold water. It really is pretty impressive.