Understand, this is a technical item that cannot be worn discreetly in the city. I don't know how well it reflects heat since I returned the item. It was too shiny and plastic for me. I think it could just be worn on the trail or while fishing. As people will understand, you wear gym clothes. The upper is reminiscent of a disco suit from the 70s. The inside was soft and comfortable. So if previous reviewers say it's brilliant, it's definitely true.