Hi, I just wanted to tell everyone how neat these cool ties are. They can keep you cool for hours and then you can just reactivate them. I was so impressed by them that I figured out how to make them. If anyone is interested in buying them, I made some really cute disney print ones. Once you used them, you will never go thru another summer without them. They are also great for children. They tend to get really grouchy when its hot. If interested just let me know.