The application discloses a flexible tubular package. The package is for an intermittent catheter. The intermittent catheter is coated with a hydrophilic coating, which becomes slippery when in contact with a swelling medium. Thus, the tubular package of the application can withhold the swelling medium for a long time and be flexible and bendable at the same time. Furthermore, the application discloses a catheter package set, which comprises a tubular package, an intermittent catheter and a swelling medium.