VW fabric is very hard wearing in general, but if the padding goes soft it can accellerate the wear. Sit in the passenger seat, is it comfortable? If not consider switching to a different seat shape, especially fi you're retrimming! Corrado seats will bolt directly into a late cabby, and are nice & low. If you can I'd look into a set they are very comfy and iirc the bolsters are ever so slightly further apart? MK3 Golf and late 90on MK2 Golf seats have a slightly different bolster shape too, so try them out as well!
edit: MK2 seats are a direct fit, MK3 seats will fit after swapping 90spec MK2 base frames onto them
