I had just purchased my wife the large FOLDING UV UMBRELLA and chair UMBRELLA HOLDER for outdoor events as she has severe skin reactions from not only the sun but the UV rays even when shaded by a regular umbrella. Saturday we were at one of the grandkids soccer games and the sun was pretty intense. I had my regular umbrella and my wife had her UV blocker. I was getting the full effect of the heat under my umbrella and asked my wife if she could feel it too, she replied that she was quite comfortable. I am very impressed with the ability of your umbrella to cool and protect her, so much so that I am going to buy one for myself.