or modern. For instance, tracht scholar Gexi Tostmann, who sees the modern dirndl as having evolved from traditional tracht designs, also uses the term "dirndl" for historical designs. A developing consensus is that a dirndl can be described as "tracht" when it has been traditionally worn by a distinct people group over a long period. This implies that a dress based on the design principles of Alpine tracht can also be called a "dirndl", even if it has a documented history of centuries as a folk costume. For example, the traditional blue polka-dotted dress of the Wachau region of Austria can be referred to either as "Wachauer Tracht" or as the "Wachauer (everyday) dirndl" In English, the name "dirndl" is used interchangeably for traditional and modern designs. Description Basic design The dirndl consists of a bodice, skirt, blouse, and apron. The bodice ( or ) is tight to the body, with a deep neckline (décolletage). It is typically made in a single piece, with the join in the front centre, secured by lacing, buttons, a hook-and-eye closure or a zip. A zip can also be on the back or the side. Traditionally, the bodice was made from dark heavy cotton, so that it would be hard-wearing. In more modern designs, it may be made from cotton, linen, velvet or silk. The material is coloured or printed. The neckline () of the bodice is traditionally round or rectangular (called "balconette"). In more modern designs, it may alternatively be high, V-shaped, heart-shaped or extra deep. The bodice often has embroidered decoration, especially when worn for public events. The skirt () is full, with folds gathered in at the waist. Before the 1930s, it was separate from the bodice, but since then the two have been sewn to one another. Originally the skirt was long, but in more modern designs it is typically mid-length. Miniskirt versions also exist. Traditionally, the skirt has a pocket on the side or in front, which is hidden under the apron. The blouse () is worn under the bodice, and is cropped above the midriff. The blouse changes the overall effect of the dirndl particularly through the cut of its neckline. A deeply cut blouse combines with a deeply cut bodice to accentuate décolletage, whereas a blouse with a high neckline gives a more modest effect. In traditional designs, the blouse neckline is at the base of the