sayl

Sayl is a line of ergonomic office chairs designed by Yves Béhar of fuseproject for Herman Miller, introduced in 2010. The defining feature is a suspension back that uses a lightweight, unframed mesh-like material to provide support while maximizing airflow. The back’s design evokes suspension bridges, offering a visually light silhouette and aiming to support a wide range of postures without rigid framing. The chair is available in several configurations to suit different work environments.

Ergonomics and adjustability are central to Sayl. Standard versions offer adjustable seat height and tilt with a tension control, while optional features include tilt-limiter, seat-depth adjustment, and various arm configurations. The back suspension is designed to flex with movement, providing support without the constraints of a solid panel. Materials include a steel frame, plastic components, and fabric or leather upholstery; the back fabric is designed for breathability. The design emphasizes ease of disassembly and recyclability.

Since its introduction, the Sayl line has been produced in multiple variants, including a task chair and a taller stool, and has been used in offices, education, and public spaces. It is considered an example of modern, design-driven office furniture that combines visual lightness with ergonomic functionality. Herman Miller markets Sayl as part of its sustainable product lineup, highlighting repairability and the potential for component-level recycling.