I had bought this belt, small size, for my sister who is into lifting. I expected it to be 10mm thick but it isn't. However the belt is good and provides adequate support for my sister. If you are looking for the 10mm version of the USI powerlifting belt go for the one priced at ₹ 2,500/- approx. It's too bad the info provided does not specify the thickness, they should update that on the site, it would prevent ppl buying the wrong belt.