Placed at points of strain. Attractive and accurate in distance from edge and in spacing between. Cut on grain. Appropriate in size. Appropriate interfacing used.
Lips meet exactly at the center of the buttonhole.
Facing securely and appropriately fastened to the back of the buttonhole. The stitches evenly spaced and smooth in appearance on front and back of buttonhole. Center cut neatly with all loose threads trimmed off. Interfacing an appropriate color. Understitching holds undercollar in place so it does not show.