Instead of ripping the zipper seams and sewing in a new one I decided to modify these jeans to have a button-fly. This simple clothing mod took me less than 30 minutues to make and gave my jeans a new lease on life. The best part is that when the jeans are buttoned up like look just they did before, no one is the wiser!
Here's how I did it!
Step 1: Remove old zipper
Step 2: Line up and sew buttons
Sew buttons onto bottom flap. When sewing do not sew buttons tight against the fabric, allowing a space between the underside of the button and fabric will allow your button to easy fit into the button holes. Here's a good technique for sewing on these kinds of buttons.
Make a few passes through the button and fabric with your needle and thread, then poke the needle up through the fabric but not the button. Wind the thread around the button several times, then sew through the windings you just made to secure the thread in place. Repeat for as many buttons as you have for your jeans.