I purchased front and rear genuine Honda rubber mats from Cox Motor parts. Quality and fit is excellent and the lipped area will retain water, rather than wet the carpet, if you have wet/snowy shoes.
One thing to note is that Honda don’t appear to be supplying an install guide for the mats, at least for the mk4.
The mk4 rear mats are supplied to fit both left and right hand drive variants but unsure if this also applies to mk3.
The driver and front passenger lower seat belt anchor housing moulding is different on each side, the driver’s protruding more than the passenger. A tabbed part of the right rear rubber mat has to be cut away with a knife on right hand drive cars and I assume the left rear mat on left hand drive cars.
Cox emailed me the Honda install guide, which explains the procedure.