I purchased this from the official online shop and wore it once, but it didn't fit me (it was too big), so I'm selling it. I washed it in a washing machine inside a laundry net, but there were no noticeable wrinkles. I think it can be worn casually or for occasions like weddings, depending on the items you pair it with. I'm not sure of the market price. Please feel free to negotiate the price. Reference: Official Online Shop https://www.urban-research.jp/shop/g/gRAA5-26K503/?goods=1256896 =================== ROSSO Washable Semi-Sheer Key Neck Dress - Color: Blue - Size: Free - Style Number: RAA5-28K503 - Material: 100% Polyester - Price: ¥16,500 Thank you for looking.