No more gap jeans!

Been wanting to try this, finally did. My jeans gap at the back. I don't care what size I am or they are... I have this problem. They fall down. I don't like wearing belts. I cut small holes on the inside of the waistband. Inserted 1/4 inch elastic, cut about 3/4 the length of where I was putting it.

Sewed up the holes and stitched down the ends of the elastic. So it looked like this when finished.

And this when on.

No gap and they stay up without a belt!!