Herman Miller Classic Aeron Side Chair: Graphite Frame/Carbon Classic Pellicle Unique breathable Pellicle suspension dissipates the body heat that builds up while you work, keeping you cool and comfortable, while providing unparralleled support Its high, wide, contoured back supports your lower spine, and the seats waterfall front edge removes pressure from the backs of your legs. The versatile Aeron Side Chair is a perfect partner for your Aeron office chair. Like all of the chairs in the Aeron family, each Aeron Side Chair is 94 percent recyclable, and more than half of each chair is comprised of recycled materials. 12-year Herman Miller warranty