Chair with metal frame SO, Ligne Roset

SO the chair from the French manufacturer Ligne Roset. A good modern sketch, seemingly simple and clear, but actually very innovative, and very unusual kind: a solemn, due to the relatively thick seat, high back and unusual perekrestnoe basis, but at the same time soft, thanks to the rounded forms; and also graceful thanks to the base made of thin steel tubes and the backrest tapering upwards.