Designed by Giancarlo Piretti and Emilio Ambasz, Dorsal® stack chairs combine back flex and a budget price. Dorsal stack chairs feature body-conforming shells and a hinged backrest that flexes for continuous support. The flex support is designed to withstand the rigors of hard use. Available with round-leg, Dorsal stack chairs are offered in poly or with upholstered seat and back pads. Ganging is also an option.