The tutu skirt arguably moved away from being a piece only prima ballerinas could wear into a viable Wednesday afternoon option when Carrie Bradshaw stepped out onto the New York streets wearing one.

Floaty and frothy, tulle is the sugar-spun staple of ballerina tutus. The millefeuille of petticoats in a Strictly Viennese waltz. And for kids, it offers pitch-perfect prettiness for parties. Yet ...