This is a dress I bought three years ago at the Tenmaya department store in Okayama. It's made of a very light material, so it doesn't take up much space in a travel bag. I think you could wear it to dinner. I've worn it about four times, only for a short time each. The size is M. It looks like very thin chiffon, but it has a lining, so you don't need to wear anything underneath to prevent it from being see-through! The original price was 48,000 yen.