Stone Island's textile experimentation meets the know-how of heritage Japanese bag brand Porter once again for a rendition of the 30 Litre Rucksack. Constructed with nylon canvas and hidden reflective fabric, the bag's coating is made of thousands of glass microspheres. An opaque black plating totally covers the refraction of the material which unveils an emerald hue when exposed to a spotlight or flash. The shaped flap cover is equipped with a zippered bellows pocket and clip-fastening. Under the flap a double nylon drawstring provides extra fastening. Visit Stone Island's online shop to purchase the product for $538 USD.