Masculine performance varies over the life course, but also from one context to another. For instance, the sports world may elicit more traditionally normative masculinities in participants than would other settings. Men who exhibit a tough and aggressive masculinity on the sports field may display a softer masculinity in familial contexts. Masculinities vary by social class as well. Studies suggest working class constructions of masculinity to be more normative than are those from middle class men and boys. As these contexts and comparisons illustrate, theorists suggest a multiplicity of masculinities, not simply one single construction of masculinity.