French fly, or waist stay, for trousers/shorts
Added Apr 1, 2012
Now turn in the waistband facing and hold in place to situate each belt in its right spot... each with the stitched closed bit at the front and the long folded edge down. The left front should be situated just over the stitching line of the placket, and the right front to halfway over the zip tape. Pin to mark their placement on the facing.