With such full, fragile hairdos, women often opted to go hatless. When hats were worn, they were either large enough to accommodate the entire do, or they were small pillbox hats that crowned the top. Many women simply went without — a relatively new look in women's fashion.

Reaction.

In the mid 1960s young women — influenced by folk singers such as Joan Baez — began rejecting bouffant styles in favor of long, straight "natural" styles, even ironing their hair to achieve the right "look."

Source:

Ellen Melinkoff, What We Wore: An Offbeat Social History of Women's Clothing, 1950 to 1980 (New York: Morrow, 1984).