Plain Jane is a name, not a personality.
The Plain Jane Dress in Ring Toss is as easy as it gets, and plain she absolutely is not. A flattering sleeveless silhouette, a slit collar that frames the décolletage just so, contrast tucked into the inside back panel, side seams and collar edge for that little extra hello, and a clean 36" length that keeps things modern.
Pair with flat sandals for Saturday errands, or a heel and statement earrings for an evening that needs more occasion.