This is the Butterick 5209 vintage halter dress I made last month, and I gave it a wear run Saturday night. My biggest concern was making sure my girls were properly concealed behind the halter. No big worries. I did find the neck area uncomfortable with basically no give with movement. It is not a dress to wear on long active days without straining my neck. My next halter will need some kind of elastic at the neck or a slight stretch in the fabric for comfort. If you want to see how I mostly put this dress together. Look HERE at my old sewing blog.