A storage package (1) contains a medical device (7) having a coated surface (8) which exhibits a reduced friction when wetted with a wetting liquid and a supply of the wetting liquid (9). The package is adapted such that the coated surface of the medical device is maintained contact with the supply of wetting liquid during storage. A good shelf-life for the medical device is achieved and where the medical device is a urethral catheter the catheter is immediately "ready-for-use" after the package has been opened.