Zac Posen's collection of under-$200 Z Spoke dresses hit Lord & Taylor stores this week, and the line is full of office-to-after-hours designs. "I always try to create age and body diverse collections that work for all types of women," Posen, inset, told InStyle.com. "The collection is inspired by a woman's ability to be flirty and sexy, while always remaining elegant and sophisticated." Styles include curve-hugging jersey sheaths and ladylike lace looks. Click through the gallery to see the lineup.