These seat cushions were specialist made so that the chairs,when folded, fit in the designated hatch  space. The set  includes 2x back cushions and 2x seat cushions. They are zipped so covers can be removed from pads for washing if required. They are attached by  velcro ties. Thin enough to fit when chairs are folded but so comfortable to sit on. The Orla Keily pattern is very stylish. They were specialistmade for me at a cost of £90. I have never used them as we are now  selling the van. New condition.