Beyond the desecrating gesture of filling a sack (Sacco) with polystyrene balls  in order to transform it into the most informal, most versatile, most irreverent,  most freeing,  most soft, most ergonomic and 'most' everything chair - there is no defined shape. It is for this very reason that it has survived, untouched by time, through seasons, fashions and every 'ism' imaginable, preserving the greatest value of all: being a concept that well beyond seasons, arriving undamaged to the present day, is ready to be adapted into versions for children and teenagers, because to encourage smiles and fun even while sitting in an 'armchair' is not a luxury reserved for adults. Envelope containing highly resistant expanded polystyrene pellets, available in 3 different sizes. Cover in: Valo, Tela Egitto, Pied de poule, Sole, Tecno (for outdoors) and leather.