The word "unzip" typically means to open or extract files from a compressed folder or file. It's like unzipping or opening a bag to access its contents. Full definition
It also opens up quite well when unzipped for washing and it's not too big so that helps it wash well also. (greenmountaindiapers.com)
These pockets are easily accessible and most parents finds them handy especially during longer trips but they can also be easily removed by unzipping from the canopy. (babygearhub.net)
By unzipping in many combinations, the WONDERZiP system allows customized control of warmth so baby is comfortable with changing temperatures while traveling. (blog.guguguru.com)