"studies suggest attractive women augment their physical appeal via heels. High heels may be a subtle indicator of dyadic sexual desire, and preferences for heels are stronger at times in the lifespan when mating competition is relatively intense"
Women who rated themselves as more attractive were more likely to opt for high heels.
Some of my evolutionary works cited in this recent article. It might interest the authors to know that I discuss in some detail the evolutionary roots of high heels in my 2007 book The Evolutionary Bases of Consumption.
"our research examined ultimate-level explanations for women’s choice of footwear (to improve attractiveness) & as such is not arguing that motives for the purchasing decisions observed in our studies necessarily reflect a conscious strategy among women"