A portable canopy is essentially a tent without sides or center pole. It is a top supported by poles. Not too long ago "portable" canopies were not very portable. They were very difficult to put up and take down and extremely cumbersome to move. The "pop-up" design has made the portable canopy easy to move, erect and take down. It can be done in virtually minutes by just one person. These pop-up canopies are based on the same principle as the collapsible umbrella.