Onyx Black Fabric With Headrest With Arms OP000094 DDThe Onyx chair is a fresh, contemporary office chair that offers a range of inspired features such as a multi functional asynchronous mechanism with multiple adjustments and a contoured foam seat and back for extra support and comfort. The Onyx is a top choice for a posture task chair. Available in black or blue fabric and Soft Bonded Leather upholstery options. Optional headrest variant available.