Kids that sweat a lot and have issues with deodorant in the pit area of the shirts? YOU MUST buy this product. All i do is spray the pit after I turn the shirt inside out and let it sit for a few minutes and up to an hour, when I forget. His shirts come out clean, unstained, and like they never had deodorant smeared from one side of the arm hole to the other. This stuff is FANTASTIC!!! I just need a larger size on a monthly basis. I literally will buy 2 - 32 ozs a month. He also plays sports and has 2 gym classes a day. So, I do go thru it a lot.