There are also cooling vests packed with ice or other substances e.g. PureTemp from Glacier Tek [1], although I wonder how good are these compared to the tradit

There are also cooling vests packed with ice or other substances e.g. PureTemp from Glacier Tek [1], although I wonder how good are these compared to the traditional ice. [1]: https://glaciertek.com/ https://glaciertek.com/