Dual foam densities provide comfort and support, Can be used to increase sitting height, promotes ergonomic posture at your workstation, in the home or office, Discreetly hidden coccyx cut-out helps relieve pressure at the base of the spine, Built-in carry handle, Base layer foam made from 93% pre-consumer recycled content, Top layer foam contains post-consumer recycled content, Fabric cover made from 100% post-consumer recycled polyester