If you want some Robin Day in the house, then you might want to invest in this set of six 1950s Robin Day-designed Hillestak chairs on eBay.
Yes, not just one but a set of six chairs, each one to a 1950 design and produced between 1950 and 1967. Still looking good today, with that clean modernist design hardly ageing a bit.
As for construction, they are made of beech laminated ply wood, with the seats and backs covered with 'black plastic leather'. They do show signs of wear and tear consistent with age, but according to the seller, they are 'generally are in very good condition'. Images of the most significant damage is highlighted in photos on the listing page, as well as detailed there.
If that's not a problem, the current bid price is £290.