Added on 10/28 Found the detachable collar! See image ⑦ Black and checkered formal collar with a ribbon. It was worn by my daughter for her 2-year-old entrance ceremony and has been kept in good condition after home cleaning. I've given it a quick look and there are no pills or stains. The size worn at the time was 90, but the jacket sleeves were too short in size 90, so I used size 95. The dress was size 90, but it looked cuter without the collar, so I lost it... I'm sorry (；-；) There are no problems with wearing it. - Color: Black and checkered - Style: Formal dress - Material: Cotton blend - Design: Sleeveless, with ribbon - Back style: Button closure Thank you for looking.