This is a floral dress from H&M. The tag has been cut off, so I'm not sure of the exact size, but it fit me perfectly, and I usually wear a size S, so it's probably around a size S. Length: Approximately 100-110cm (the dress itself is 90cm long, and the shoulder straps are adjustable), Width: Approximately 39cm (there is elastic and gathering, so the size may vary slightly.) I've only tried it on, but it has been stored at home, so please understand this before purchasing.