HON® Nucleus seating is constructed from innovative materials to deliver comfort from the inside out. This fixed arm guest chair stacks up to four high, making it ideal not only for the office, but also for active rearrangement in multipurpose rooms, training rooms and common areas. Back is black, breathable four-way stretch mesh that cradles your spine. Back pivots to flex to the desired position. Stacks up to four high on the floor for quick rearrangement.