Pocket Onyx, more shoulder adjustments, and why the type of interfacing matters

I made another Onyx blazer, this one hip length in charcoal grey ponte (charming heather legacy ponte from Zelouf) with pockets. I tweaked the pattern some more before I cut it out, this time to add a simple sloped shoulder adjustment (in addition to the round-back adjustment and small-bust adjustment I made on my purple cropped Onyx). I noticed that when I raised my shoulders (as in a shrug) the drag lines I saw on the back of my purple Onyx mostly disappeared. So I lowered the outside point of the shoulder by .75 inch and adjusted the shoulder line on the center and side front and back pieces accordingly. Then, I lowered the armscyes to meet the lowered shoulder point, ensuring that the size of the arm openings did not change. This reduced the excess fabric from the shoulder area that had been pooling around the armscye and helped reduce drag lines on the back. The fit of the back is now about as good as I’m going to get so I will stop tweaking and use this going forward. I made a size 4 hip length, shortened by two inches. I reduced the height of the pockets by only about .5 inches and made them a tad narrower to fit the shortened side-front pieces.

For the purple Onyx, I cut the facing pieces using the front-center pattern piece so that I could sew them down when I top stitched the front seams. I used a lightweight fusible interfacing with no stretch. I noticed that the interfaced facing shrunk a little bit, making it more difficult to attach smoothly, but I made it work. However, on the grey ponte, the lightweight interfacing was a complete disaster. When I clipped the facing to the front center pieces, I found the facing was about an inch shorter. I tried to make it work but it was clearly not happening. Then I remembered that I had tricot interfacing (Superpunch Fusi-Knit White HTC1300), which has some stretch to it. So I cut new facing pieces and fused the tricot interfacing on, with the stretch running vertically. This time the facing did not shrink and everything went together the way it was supposed to! This was a great lesson in selecting the right interfacing for the job.

I did most of the sewing on my serger but I used my sewing machine with my quarter-inch edge foot to do the stay stitching, basting, and top stitch the front and back seams. I used my regular edge foot to top-stitch the tops of the pockets. I sewed the arms to the bodice with my sewing machine before serging, and I made sure to start and stop the serged seam in the armpit. As with the purple Onyx, I sewed the center back seam with my sewing machine, pressed it open, and then topstitched a quarter inch on either side of the back seam. This makes for a nice flat seam that looks very nice.

I used fusible hem tape on the bottom hem and sleeve hems before sewing. I also used it to hold the facing edge in place before top-stitching. I used a glue stick in a few places to keep pieces aligned before sewing.

Ponte is a comfortable fabric to wear, washes well, and resists wrinkles, snags, and pills. The charcoal grey should go well with a lot of things and I expect I will wear this one a lot. The pockets are a nice convenience too, although I probably won’t routinely put my phone or anything heavy in them as it will stretch the ponte. The hip length is just long enough to cover an untucked shirt, which makes it a pretty versatile length to wear with a lot of things. Here I am modeling it with black ponte PE Urban Wide leg pants and a Sinclair Bondi top in plum brushed sweater knit. The jacket also looks great with the PE Urban Wide leg pants I made previously in the same charming heather ponte fabric.

Summary of modifications to size 4 hip-length pattern with pockets:

  • Small-bust adjustment (performed by redrawing the inner curve on the side-front pieces to have less of a contour and then shortening the center front pieces to match the length of the new curve)
  • Sloped-shoulder adjustment (3/4 inch)
  • Round-back adjustments (2 5/8-inch adjustments near top and bottom of arscye)
  • Deepen back neckline by about 3/4 inch and adjust back facing
  • Shorten bottom hem by 2 inches
  • Shorten sleeves by 2 inches
  • Shorten pockets by 1/2 inch and adjust width to match width at hem line
  • Cut facing and interfacing from front-center pieces instead of facing pieces