Abstract: A turn-over area having two folds is formed in a part constituted by a collar outside and an insert and is held together by seams. Fold formation is facilitated by making the insert in the turn-over area in which the strip, which is usually adhered to the collar outside has unstiffened strips in the area of the folds and another strip for the turn-over area. The first-mentioned strips can be replaced by cuts or perforations. The portion formed in this way can be pre-sewn, turned and stitched to the collar underside, in the same way as a one-piece collar. Despite the fact that the working and material expenditure is only a little greater than in a one-piece collar, the appearance is that of a two-piece collar, which is taken as an indication of the quality of the article of clothing.