Products that reduce body heat

Wow... the weather is really hot today. They say the daytime temperature in my neighborhood will reach 35 degrees, so it’s already getting hot. It feels like the heat isn't dissipating from my body. What products do you use to cool down the body heat in times like this? I’m running out of my current product and looking to buy a new one. Since I’m buying one anyway, I’d prefer something that helps reduce body heat, so I’d like to get recommendations for popular items.