Very large - larger than I was expecting. It is very sturdy plastic so it shouldn't tear. I have a 7.5' flocked tree and there was PLENTY of room left in the bag.  The only thing I wish these bags had were maybe hard sides, so that you could stand it upright. I'm not sure yet whether I will like it taking up more space than it did in the box as the box would stand on it's end. I didn't even think about that before I ordered (even though it should've been common sense!)  Overall it is a good bag, study with plenty of room. But if your storage space is limited, please keep in mind that it won't stand up.