MuuMoo. Saw these in Metropolis and liked them. Very simple, very elegant. Designed by Harri Koskinen (a Fin) for Montina (Italian), it reflects this odd combination with a Spartan Passion. (How's that for off-the-cuff?).
The chairs themselves come with arms or without and are made of oak with only a sheet of felt or leather affixed to the wood for upholstery. The chairs won the Compasso d'Oro (which is a good thing), so Harri is getting to take this line further. Hard to find, but available through Chairs.ws. MGR