This is a formal dress. The large ribbon is removable. The set includes the dress + petticoat (photo 4) + outerwear (photos 5-7). I loved it very much and wore it five times, but I'm selling it because it no longer fits. I hope you can use it for weddings, alumni reunions for coming-of-age ceremonies, graduation parties, etc. Purchase price...¥22,000 Season...Spring, Summer, Autumn Skirt length...Knee-length Pattern/Design...Solid Skirt silhouette...Flare Sleeve length...Sleeveless Thank you for your consideration.