B has gotten soooo many holes in his pants this year! I needed a way to make them last and still look cute. I mean the rest of the pants are fine, except the knee! Start with a scrap piece of denim, a sew-able iron on patch or some other sturdy fabric you have on hand. If you are using regular fabric you need to serge the edges or zig-zag them, so there won't be any fraying. (not shown)Pin your patch where you want it on the inside, I just slip it in with my hand down through the waist and...