The Portofino armchair features an armrest that becomes the common thread of the frame. The armrest runs outside the backrest and is connected to the front legs with a comb insertion. The frame is in beech with stained finishes "F", lacquered "L" and shiny lacquered "LG" as in the sample book. The seat features a single body whose extremities are defined in square corners that are slightly tapered. The cover is recommended in soft leather in the “P” variations of Colli Casa.