Traffic Police gets Special Cool Jackets to Beat Heat in Hyderabad which safeguards them from severe temperatures. Sources say that the jackets give a cool effect to traffic constables who will work under the scorching sun for 8 to 9 hours. It needs to be dipped in water before wearing to give a cool effect and a feel of reducing the temperatures by at least 5 degrees. Traffic joint CP Ravinder said jackets are very useful and give coolness for 4 to 6 hours if they are dipped in water once before wearing it. They say that these jackets can be used in all seasons to get the specific effect needed for the season.