Fair Isle patterns became very popular for both sexes. Heels, at the time, were often over two inches high and helped popularize the two-tone shoe. Salvatore Ferragamo and André Perugia were two of the most influential and respected designers in footwear. Many stars of silent film had a significant impact on fashion during the 1920s, including Louise Brooks, Gloria Swanson, and Colleen Moore. The lighthearted, forward-looking fashions of the 1920s gradually came to halt after the Wall Street Crash of 1929, and succumbed to a more conservative style. While the flapper look persisted into 1930, it quickly disappeared afterwards, although bell-shaped hats lasted through 1933.