A Felled Seam is a nicely enclosed, reinforced seam. We tend to associate it with modern blue jeans, but it’s a very traditional bit of stitchery. Most of the shirts and smocks in Patterns of Fashion 4 use a handworked Fell seam.
A finished Fell Seam, seen from the top.
Seam Allowance Required: 1/2″-1″
With WRONG sides together, sew fabric together with seam allowanced indicated by pattern.
Trim one of the seam allowances to 1/2 its original width.
One allowance trimmed, one left intact. Very important.
Fold the larger seam allowance over the trimmed seam allowance. Press. (I'm finger pressing for this sample.)
Open the seam, so that the seam allowances are on top to one side.
Sew the folded edge down.
The finished Fell Seam from the front.
The finished Fell Seam from the back.