The Si's have a cloth/material seat. Mine is starting to knap up. I drive it once or twice a week. Took in on a couple of 600 mile road trips in Aug/Sept, only have 4700 miles on in since June 20th. And the seats, drivers and passanger, are knapping up,.. like an old sweater. Any suggestions out there? i am 5'8" and 180lbs. if i have to lose more weight to keep my seats nice i am going to be pissed.