In celebration of its 80th anniversary, renowned bag and luggage specialist Porter has teamed up with Stone Island on a three-piece co-branded collection. The individual pieces take the form of a backpack, duffle bag and Boston bag. All three are crafted from lightweight and durable polypropylene. The synthetic material features antibacterial properties, and is blended here with a nylon metal fine-tuned by Stone Island, giving the material an iridescent look. Each piece is finished in Ultramarine Blue and branded with Stone Island's signature badge and Porter's woven logo patch. The collection is available now through Stone Island's online store.