Davis debuted on the catwalk at the Ralph Lauren Blue Label Spring 2006 runway show. In years to come, she would take to the runway for designers like Betsey Johnson, Carmen Marc Valvo, Jenni Kayne, Tracy Reese, and Nanette Lepore.
The collaboration between Davis and Ralph Lauren also included several ad campaigns. The American model was announced as the face of Lauren's Ralph Rocks perfume in 2006. She has also modeled for Ralph Lauren Resort Collection.
Davis has also featured in campaigns for Yves Saint Laurent Pataugas, Tommy Hilfiger, Victoria's Secret Pink label, American Eagle Outfitters, Levi's, Avon, and more.
Davis has appeared on many fashion magazine covers and editorials, including ‘D’ and ‘Elle’ magazines. She has a keen interest in several fields of fashion and enjoys clothing and jewelry design.