4 years for me too with the Kore Essentials. I own one nylon, one black leather, and one brown leather. Very comfortable and sturdy. I’ve lost about 30 pounds in that time and only had to cut down the length and was good to go. It’s also quick and easy to loosen it on days I may over indulge.In addition to the above, another I would recommend you look at is Kore Essentials. I have two, one black web and the other tan, both still look brand new but they're 4 years old. No sag and almost infinitely adjustable.
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