Deceptively simple for such an elegant object, the Pentatonic Airtool Chair takes its name seriously. The "Air" comes from the base components, which are formed using gas-assisted manufacturing techniques to leave them hollow, lightweight, and yet strong. "Tool" refers to the fact that each element serves as a tool on its own, making complicated assembly instructions unnecessary. On top of the base sits a seat shell made from one of three innovative materials — two are made from repurposed trash, while one feels like wool even though it's plastic. An ideal — and environmentally-conscious — addition to any work area.