I was told by a professional detailer that the reddish/brown stain on my seat came from the leather belt on my jeans. Obviously i must sweat a lot that my leather belt too is sweating. We tried various cleaners but no luck. If a harsh cleaner was to be used it probably remove the stain but probably permanent discolour my precious/expensive leather seat. I am frustrated, should I just live with the stain or try something aggressive and risk possible damage. Fellow members must have encountered similar problem, therefore, please help your fellow member. Thanks in advance.