Have slips gone completely out of style?
Slips have been out of fashion since the 80's, when they turned into outerwear, but they never go out of style under something unlined or in a limp fabric.
For me a slip depends on the weight of the fabric, lighter ones I always wear a slip with. I also always wear a slip with white, but the slip, and panties are usually a beige / nude tone. White shows through any color underneath, including white, except for nude tones. I don't understand it, I just know it's true.