The Grand Rapids, Michigan based furniture manufacturer Steelcase Inc.'s new midpriced office chair, Think, is designed with a three-part "brain," flexors that adapt to the user's movements, a reclining mechanism that creates resistance proportional to the user's individual weight, and an adjustable back selector. The company worked with McDonough Braunguart Design Chemistry to give the chair a "conscience," as well. Comprised of 98 percent recyclable content and up to 50 percent recycled material, Think is the greenest office chair on the market to date.