40/4 is as strong and sturdy as it is refined. Its gentle, contoured lines disguise the chair’s rugged durability. Elegant, minimalist design allows it to effortlessly exist within diverse architectural venues.
 
An indisputable icon of multifunctional design, the 40/4 chair is featured in design collections and museums worldwide. Since its launch in 1964, the chair has always been in production. More than 8 million have been sold.