This is Not a Tutorial — Fixing a Back Waist Gap
By which I mean, I’m pretty sure someone posted a proper tutorial for how to do this online, but I can’t find it. So I’m just going to tell you what I did in my own terms.
Everybody with a swayback knows the perennial gaposis in skirts and pants, when a garment fits everywhere except at that critical back waist dip. I had an Old Navy corduroy skirt that I bought last year for $6, and I really liked it but the back waist gaped so badly that even a belt couldn’t cinch it in enough. After giving it away and getting it back from a friend who couldn’t fit into it either, I decided it was cheap enough to be worth trying the following fix:
Step 1: Use your seam ripper and/or small scissors to open two slits in the INSIDE waistband only. I made mine about 5/8″ to the front of the side belt loops because I wanted to sew close to the belt loops and hide some of the stitching.
Step 2: Run a length of 1″ elastic (or whatever fits your waistband) through the two slits and safety pin, then try on the garment and adjust until it fits.
Step 3: Run a row or two of stitching through waistband and elastic, to the side of the belt loop, securing both ends well for stability.
Step 4: Cut the elastic close to the stitching, then poke the ends back through the slits on the waistband. Whipstitch the two openings closed.
Step 5: Use a lint brush to remove cat hair.
Step 6: Put on the garment and marvel that it actually fits.
There you go, folks. Gaposis solved and you get to channel your inner six-year-old all at once.