NWT Trina Turk sheath dress in size 6

NWT Trina Turk sheath dress in a size 6. Hidden zip in the back. This dress is unlined but is thick material so not see through.I have never been able to figure out what a scuba sheath is but this might be it. It doesn’t feel quite as thick as the neoprene suits or seat covers that we have had but it is close. I don’t think it can wrinkle. I have another size 6 listed with a slightly different pattern. The colors are very vivid. The background color is black.