Various new and different forms of collar emerged in the 1920s. They diminished in sizes by the 1950s, but were huge in the 1930s. At the beginning of the 1970s, popular styles included the rounded collar, sausage dog collar, then extra wide collar and double cuffs from shirts, that fell on them often from fashions relating to synthetic fabrics like usually polyester. At the beginning of the 1960s bubic bangs came back, then later wide collars. The fashion of standing collar and federal collar, loops, rounded collars, revere collar and the smallest collar, sometimes with concealed button fly on a "smoking blouse", attached folds and stressed set-in-followed in the 1980s. Again, thin and often shining synthetic fibres were very popular. Towards the end of the 20th Century, they were of an extra-long blouses of pants style and worn over trousers or skirt worn, optionally combined with a rather wide belt around the waist in Germany, the Netherlands, Belgium, Denmark, Poland, the UK, Ireland, South Africa and the USA.