Lightness and new techniques, the process developed by Stone Island, to make the nylon ultra-light, garment dyed, down jacket. Ultra-light nylon weighing only 26 grams per square metre. Filled with the finest down, appositely treated to bear the stress of the garment dyeing procedure. Extra lightness and comfort achieved through the direct injection of the feathers and by a simplified construction of the down bags. Garment dyed through special formulas to achieve otherwise unreachable shades. The addition of a special agent to the dye formula also makes the piece anti-drop.