You want beads then. US company
Home - BeadRider - Beaded Motorcycle Seats
'Ultimate' Ceramic beads are tough as nails. The standard 'Classic' wood bead versions are said to be good but I had cheap Taiwanese ones years ago for car seats and the wooden beads in those did crack and split.
They are expensive and I was surprised to see they use nylon line like the Chinese cheapies did years ago. Hopefully it is much better quality as that used to be cheap fishing line on the car seat one years ago and they broke/wore/or degraded in UV light with sections unravelling like a worn out knitted pullover.
For most bike models they come with a separate rider and pillion section in different sizes.
I got a pair of the US Beadrider ones on Gumtree locally, brand new never used, for much less than what they would have cost shipped to OZ.
They are very good quality with thick nylon line and ceramic beads.
The Front Seat (Rider)