What are the advantages and disadvantages of using a zip on a cushion?

Using a zip on a cushion offers several advantages, including easy removal for washing or replacement, which helps maintain cleanliness and hygiene. Additionally, zips allow for the adjustment of cushion firmness by adding or removing filling. However, disadvantages include the potential for the zip to malfunction or break, which can compromise the cushion’s usability. Zips may also create discomfort if not properly concealed, impacting the overall aesthetic and comfort of the cushion.