A swing top (or flared top) is and easy fit and comfy style. It's also figure flattering and very popular at the moment!
It's so simple to draft, too.
It's important to slash and spread your pattern to distribute the fullness, however. If you simply make the hem wider, you might not have the swing you desire, and it may not hang properly.
I flare the top from the bustline. I find that keeping a natural fit at the bust and shoulders is the most flattering; the fullness is at the hem, not throughout the top. Flaring the top from the shoulder line makes the whole thing big and baggy - not the look I would be going for!
Drafting the front of the top couldn't be easier.
Draw a line from the point of the bust dart to the hem, then cut along that line.
Then just close the bust dart (opening the dart at the hem).
Re-draw the hemline, using a gentle curve from the dart to the side seam.
Drafting the back is only slightly more involved.
You should have a horizontal grainline just under the armhole on the back of your blouse block. (If you don't, please draw one).
Draw a line from the horizontal grainline to the hem, approximately in the center of the back. Cut along that line, then continue the cut along the horizontal line to the side seam.
Flare the side seam to match the flare on the front pattern. This will force the piece down; don't worry about that.Re-draw the hemline, again with a gentle curve
(which, in this case, will cut off the excess from the side back).
Your final draft should look something like the one at right.
The width of the top will probably not be the same on front and back, but the angle and length of the side seam should match!
Now, design the neckline or collar and sleeves as you choose. The sketch at the top of this page has a simple wide neckline and the basic blouse sleeve.
And don't forget to finish your pattern with seam allowances, facings - or whatever is required of your style.
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