For all intents and purposes, the Kassel collection is a simple set; but oftentimes, the simplest options are not only the best, but also the most beautiful. Take for example the square cushions of this sofa--they are upholstered in flannelette and designed to fit perfectly side by side, providing comfort alongside the matching loose back pillows. The simple curves of the arms provide a silhouette that's decidedly modern. The walnut-finished legs are simple, too--rounded and tapered ever so slightly at the tip to provide a sleek-looking foundation to this unassuming sofa.