This sleeveless dress is knit from soufflé yarn that has a nice weight to it. Up top, the bodice is done in a mix of thick and thin ribbing that hugs you in all the right places. Below, a swingy skirt flares out from the hip and hits at midcalf. The result is sleek, sophisticated, and—thanks to that blue tipping at the neck—the perfect amount of playful, too.