Herman Miller Replacement Classic Aeron Office Chair Seat, Fits Medium Size B;

Replacement seat for carbon colored CLASSIC Aeron chair, size medium B only, pellicle material. Pellicle, the innovative, elastomeric suspension of the original Aeron, eliminated circulation-restricting pressure points and stretched the boundaries of material design. 8Z Pellicle pushes the material to a whole new zone-eight of them. Across the seat and back, eight latitudinal zones of varying tension-tightest at the edges and more forgiving where the body makes contact-envelop the sitter, and deliver increased comfort and ergonomic support. By doing away with foam and fabric, Aeron solved one of prolonged sitting's biggest predicaments: the buildup of heat and humidity close to the body. Pellicle allows air, body heat, and water vapor to pass through the seat and backrest to help maintain even and comfortable skin temperatures. While many chairs have adopted mesh as a way to deliver some performance, there's only one Pellicle.