Thats right Jim, Mil for thickness was Paus intention I am sure. It was certainly mine lol. I have not experienced what Paus describe with the black 9 mil, but my bees are pretty gently. I have however on occasion, entered a hive that was apparently having a temperamental day and I felt the bumps of bees on my hand as they hit my gloves, but rarely a 'sting through' in my experience. Otherwise I would ruled this glove as useless as I did with the lesser mil gloves that I have tried. The 9mil gloves work for me... But there again, I do not mind taking a sting every now and then. If absolutely no sting was my goal, I would try the 12 mil as paus described.