We saw lots of unique necklines this season, but "most spotted" goes to the illusion style, in which a sheer, delicate, and often embellished layer of fabric veils skin that would otherwise be exposed. (Think of illusion as "strapless, with coverage," noting its power to transform a sassy, "look at my boobs" situation into something soft, elegant, and romantic.)
The Trend: Two-Tiered Skirts
Last season in skirts, three-dimensional florals hit critical mass. This season, designers focused on hemlines, creating skirts with two distinct tiers. Call it an exaggerated form of the peplum detail from previous seasons, and this time, it's superflattering—the top tier is a genius way to camouflage wider hips.
The Trend: Horsehair Trim
Don't worry, animal rights activists, horsehair does not come from our equine friends; it's a synthetic fabric often used on the underskirts of gowns to create a cleaner shape and a crisper hemline. Continuing with the trend of turning dresses inside-out (see last season's corsets), designers are now exposing this underlay fabrication, either as a visible hemline treatment or a lavishly looped sash or bodice detail. It works to create incredible volume and dimension on ballgowns and also provides a unique, frothy-yet-modern textural element.