Guess what! I work in a warehouse for the largest sporting goods retailers in the country, and they are not used due to the fact they lead to more injuries because uneducated workers think they are supportive and fail to use proper lifting techniques. You call yourself an engineer? Perhaps you better go back to school and read up on the latest research. Before you go spouting off more, let me inform you that I am also a member of our safety committee AND one of our first responders. I've read the research and treated the injuries. Most engineers are too busy sitting in their offices dreaming up their next silly project and never come out to the floor to experience the real world. Before you go claiming a college degree, guess what, I have have two of them. Big deal. I know, lets compare language skills, how many do you speak? I speak four, besides english. IQ comparisons, mine's 122. How about shoe size??? Just because YOU think something is correct doesn't make it so. KEEP UP WITH THE CURRENT RESEARCH IF YOU WISH TO REMAIN CURRENT instead of sitting around thinking of the next assinine comments to come up with. I am done with this subject! Time to move on to more important things.