These cool rags are the best things we have found to help us make it through an all day clinic in hot weather……when ever the heat gets up to mid 80′s or higher just wet the Sammy and put it around your neck or on your shoulders. As the breeze blows it will feel almost like you have your own personal air conditioner blowing cool air on you constantly. If it dries out just wet it again. We have found that it turns the last 2 to 3 hours of a long hot day into nothing because you have been kept cool all day.