A multi-purpose stacking chair to be used at gatherings and meeting spaces. It has a mesh seat to disperse body pressure and uses the bending effect of a torsion bar mechanism and the bending of the chair back to provide comfortable seating. Seat can be selected from resin seat line-up depending on various occasions. Forty chairs can be stacked onto the exclusive cart for storage. Moreover, the chair uses recycled materials and all the parts can be separated, changed and recycled to reduce environmental burden and maintain quality. On the assumption that it will be used both in and out of Japan, it has achieved world-class standards of quality and durability, and is very lightweight. The simple chair design is ergonomically based to accommodate various body types and postures and sets a world standard for the next generation.