The two handles make it easy to transport the Porta Potti, whilst also making it discrete to carry your tank. The bag has a durable zip and is made of strong PVC material. The interior of the bag has a glazed finish for easy cleaning. The bag itself is washable in domestic washing machines (max 40C). This way the bag is ideal for transportation and protection of your portable toilet and you dont need to keep the old carton box. For PP145, 335, 345