Bollicosa Nautilus - Pendant Lamp. Bollicosa Nautilus has the same blown glass sphere as the Bollicosa indoor with the distinctive bubbly surface caused by the artisan blowing process; the natural irregularities make the material rough and matt and imbue it with a 3D quality that gives it the appearance of a fossilised stone to the naked eye. The outdoor version envelopes the diffuser with a neutral-coloured polypropylene rope net, with knots in contrasting colours, which recalls the hand weaves of the furniture in the Cassina outdoor collection. In two sizes, Ø 30 cm or Ø 50 cm, with fumé transparent glass with green knots, or pink with rustcoloured knots.