Order larger than you need.  ie.  9 foot tree order for an 11.  We have an 8 foot tree and this bag was for a 9 foot tree.   Packing tree away was a struggle. With 2 people packing we had to literally sit on the bag and squash the contents and even then we barely got the zipper closed.  Truly hoping it does not just tear open while stored away for 11 months.  We shall see come December!