Peter Pan collars were a trend all over the spring 2011 runways. The school girl-inspired neckwear turned up again and again in the season's ready-to-wear collections, which stepped it up with new ways to wear the conventional collar. Take Isaac Mizrahi's whimsical version of the classic button-up with a rhinestone-adorned neckline. The rounded collar look took on sophisticated edge over at Araks, with a Dutch farm girl take on the Pan collar that used contrasting trimmings on semi-sheer chiffon tops and flowing dresses.

Jill Stuart put a fun spin on a classic black collar that contrasted with sleek ivory blouses. While lace proved the perfect way to round off necklines in Erdem's collection of seasonal calico-printed sundresses and feminine frocks, adding Victorian touches to both with white lace, doily-like collars.