The Herman Miller Aeron remastered Mesh Office/Desk Chair in Size B is a premium quality office chair designed for ultimate comfort and support during long hours of work. With its sleek design and advanced technology, this chair provides optimal ventilation and ergonomic support for a variety of work environments. The Herman Miller brand is known for its high-quality and durable furniture, making this chair a valuable investment for any business or workspace. Size B Tilt lock Lumber support.