Although you can see the bottom in both these photos, the bag can stand on its own. It just didn't have anything in it when the photos were taken. The whole thing is made from sturdy material (not quite a canvas) and it is totally lined with horsehair interfacing. The inside is lined in bright yellow broadcloth - the same colour as the straps - and there are two pockets on both sides. I did take a photo of the inside but it came out blurry and now the bag is no longer here.
No more bags for a while. I am going to do some other sewing.