Complex sentence: In the late 1920s and 1930s, a design considered very stylish was the single breasted peaked lapel jacket, a feature carried into day clothing by the increasing popularity of the peaked dinner jacket Flusser (2002).
Split into simpler sentences: In the late 1920s and 1930s, the single breasted peaked lapel jacket was considered a very stylish design. The feature was carried into day clothing by the increasing popularity of the peaked dinner jacket Flusser (2002).