Under HollandLine, we mean the normal, square quilting. The leatherette used here does not shine and has a nice grain. Here you can easily choose your desired color.
Seatsocket-style
With this model, there is an open or a closed seat base ex factory on the driver's side. With the open seat base, you can reach underneath and it is trapezoidal. The closed seat base is rectangular and sometimes has a round hole.