We know from experience that a cover works better than a cushion bag. If water penetrates a cover, usually only one cushion is wet. If water penetrates a bag, usually all the cushions are wet. With a cover you also have more air circulation and ventilation. With a bag, you have the maximum number of cushions in the minimum amount of space. Bags are usually quite large and, when they are filled, very heavy. Therefore, bags wear out more quickly. It is always smarter to take 2 small bags instead of 1 large storage bag. A large bag is also difficult to pass through a door. Another disadvantage is that the zip is never waterproof. So if you want to use a bag outside, always keep the zip underneath and off the ground. Therefore we advise you not to use bags outside. Bags with a rating of 7 or higher should only be used in combination with a cover, canopy, veranda or similar. Always remember that a bag is never better than a damp shed.