Fit and style are great, but ordered white for a costume, and they definitely should be lined completely, at least in that color. Ordered a white bra top to go with it, it is completely lined, and there are no issues. Hoping with nude tights that the briefs will work, or I will end up having to line them myself. If I wanted to have to do that, could have made them from scratch, especially in a white satin Spandex. Don't know how it is with other colors. And the briefs run small. No matter what the size charts say, I know at least with briefs in the Body Wrappers brand to order a size larger than measured.