Astute seating takes the concept of the plastic shell chair and makes it even more comfortable and flexible. Designed to encourage proper posture, the light textured shell holds students in place and the ergonomically designed contour shell comfortably fits the body. This chair has stood the test of time in the field, performing in classrooms for decades. Choose from four chair heights: 17.5", 15.5", 13.5", and 11.5". Chrome frame with shell colors in Burgundy, Black, Blueberry, Mint, Navy, Forest Green, Clementine and Purple.