In fact, when she has her way, the actress opts for a far more casual look.
"I love the rain; it gives me a chance to wear jeans and a sweater," she explained. "My style is total tomboy."
Not that she minds playing dress-up for more formal occasions.
"I do love skirts and dresses when I want to feel feminine or if I'm dressing for the carpet," Agron said. "But I like finding a balance between feminine and masculine. My style in real life has just become much more casual."
The actress, who got her big break playing top cheerleader Quinn Fabray at McKinley high on Glee, has mostly moved on to big-budget films such as last year's The Family with Robert De Niro and Michelle Pfeiffer.
But after noticeably missing the musical show's tribute episode to deceased actor Cory Monteith, Quinn (and Agron) is due to return for the show's 100th episode on March 18, joining fellow alums Amber Riley, Harry Shum Jr., Mark Salling, Kristin Chenoweth and Heather Morris in marking the milestone.