Half-zip overshirt in loose fit with pocket, from Stone Island's Organic-Look Nylon Panama-TC. Made from 100% nylon fabric produced in Japan with an organic appearance: ultra-fine nylon extrusions are cut, blended, blown, carded, twisted and spun to mimic natural fibers, then calendered into a panama weave that's lighter and stronger than natural fabrics. Garment-dyed with a special formula and anti-drop treatment, giving the surface a marbled look.