Stone Island Naslan Light Nylon Overshirt in Navy. Garment dyed and crafted from mechanically spun Nylon to achieve Stone Island's 'Naslan Light' material, this piece undergoes a process that steams the nylon filaments in order to achieve the look of more organic materials. Water and wind resistance are gained thanks to the nylon exterior, while a mesh interior ensures that the garment offers breathability. Two-way YKK zippers, a chest pocket and a detachable badge logo complete the piece.