I chose this bag because when I looked at others you had to squeeze your tree into the top through the smaller zipper area.  Whereas this bag unzips and folds totally open for easy storage.  You just lift the lay down flap up and around the tree without any hindrance. I was surprised to see that inside the bag is a zippered storage area for ornaments, star toppers, etc.  It also comes with 4 adjustable tie straps with buckles to put around your tree to cinch it in with.  That is awesome.  There are also more straps that are attached to the bag to make sure it is held tightly together.  It is made of a heavy duty canvas and it lined with a plastic inside for moisture resistance.  This bag is sturdy and should last me for years.  What a great way to get organized.