I am not a flyweight by any means. I am a 73 year old female with multiple back issues, including the "door hinge" in my neck. I bought this as I love to do my yard work, but at the end of the day, I am DONE! I put this on, cinched it up, and I felt WONDERFUL! We just had our retaining wall rebuilt (my first one fell down from water back pressure). This time, I had planned on putting marble chips in back of it, to allow for seeping drainage. Well, I just finished, today, having put down 3 palates of the marble. Each bag weighed about 50 pounds. Add it up...60 bags per palate, 3 palates equals 9000 pounds of rock. I loaded it on a lawn tractor-trailer, then unloaded, cut open the bag, and distributed it. I feel great. I think this helped me a lot in holding me together, in alignment. It may look a little dorky, on a senior female, but this was not a fashion show.