Polka Dot Dress Long Tall Sally US Size 12, UK 16 Bust - 40 inches Waist - 34 inches Length- 57 inches These are measurements when the dress is stretched out to its maximum! For reference my height is 5’8”. Hi guys bought this dress at least one year ago and it has sat in my closet ever since! This was my first time buying a dress from LTS and I guess the sizing runs very small. I would say that the size is more equivalent to that of a US size 10. I don’t know the specific materials of this dress either. Tried on once & decided it was very tight on me. Feel free to ask me questions!