Slot length: approximately 54 cm Length: approximately 115 cm Width (underarm): approximately 30 cm I usually wear M-L size and am 164 cm tall. It's the type that ties at the back of the neck. It's a beautiful, bright, deep navy purple. It's a gorgeous and chic dress. It gives a mature impression. I bought it new and only wore it once or twice. How about it for cosplay or a party?