This sleek hunk of plastic isn’t a museum sculpture. It’s a chair, designed by Philippe Starck for Kartell and newly available at its Soho flagship (39 Greene St., nr. Grand St.; 212-966-6665). Miss Less, as the model’s called, comes in this poppy-orange finish as well as white, black, and gray shades, and has a thin but sturdy polycarbonate back. It’s also surprisingly comfortable thanks to an anatomically minded dip in the seat. More unbelievable still: It costs $329, which means you don’t have to be a millionaire patron of the arts to buy a sextet for your down-on-its-luck dining room.