Blue Jupiter Lassen Chair by Lassen. Dimensions: W 58 x D 60 x H 88 cm. Materials: Textile. The Lassen chair by Flemming Lassen, Magnus Sangild and Marianne Viktor was launched in 2018 as an ode to Flemming Lassen’s uncompromising approach and special feel for detail, aesthetics, quality and form. The upholstered seat and back is placed on a geometric frame in powder-coated black metal and the dining chair embraces one’s body, letting you sit comfortably for hours on end.