Guest chair features a mesh back to mold to your natural curvature. The exhaust vent in the plastic cover under the fabric-upholstered, cushioned seat offers even more breathability. Nylon pads top the fixed arms that are built into the four square tube legs. Use for your lobby or large meeting areas. Stack up to 4 high. Seat measures 18-3/4" wide x 18-3/8" deep x 18-1/8" high. Back size is 17-3/8" wide x 14" high.