Last year I bought a new seat cover from Sitzfleisch, because mine had a little tear. The time has came to install it, and at the same time raised the front of the foam a little with adding seat foam from a scrapped car seat. This is easier said than done... Don't like to slip forward while riding, that's my reason for this. Did the work, next was installing the cover, which is a quality product, I recommend them (not affiliated). There's 3 versions of seat covers, normal, comfort, diamond.
https://www.sitzfleisch.eu/products/yamaha-fzs600-fazer-bezug?variant=46653637558597 I bought the comfort version.
