cooling products

I don't remember if I had said anything about it on here, but I did receive the name of a website to get some coolng pruducts called polarproducts.com.  I bought a cooling vest and some cooling hats from them, but it has not been hot enough yet to need them(thank goodness).  I think that it has been hot enough, but I have not been outside on those days.  They have a number of products and colors if fasion is your thing(it is not mine).  I believe that the way they work is just soaking them in water  wringing them out and they are ready to go.  Moisture on the surface of your skin is better than nothing.  I have heard about other vests that have pockets in them to house gel packs that you place in the freezer over night.  I have not needed them yet, but I will try them out and I bet I will report on their effectiveness on here.