Stone Island Garment Dyed Down Jacket Video Here we have a video from Stone Island‘s R&D department that looks to highlight a new process developed by the Italian brand to make their ultra-light nylon, garment dyed down jacket. The nylon weighs only 26 grams per square meter and is filled with the finest down, appositely treated to bear the stress of the garment dyeing procedure. The lightweight and comfort of the jacket is achieved through the direct injection of the feathers and by a simplified construction of the down bags. The jacket is then garment dyed through special formulas to achieve otherwise unreachable shades and the addition of a special agent to the dye formula makes the piece anti-drop. Video is below.