I know, this sounds like a stupid question, but its driving me nuts. I have several white striped button down shirts and I wear them with a blazer, no tie, collar unbuttoned. The problem is that you can easily see the skin tone through these shirts. If I wear a sleeveless undershirt, you can easily see the shape of the undershirt under the dress shirt, and where the shirt stops and the skin starts. If I wear a typical short sleeve undershirt, it just adds too much bulk, especially in the summer. Ive tried to find a sheer lycra type shirt, but I want a v neck and I just havent found anything locally. With a white button down shirt, is it typical to wear a ribbed sleeveless shirt "wife beater" even if the undershirt can be seen beneath the shirt, or is that not proper? It really bothers me, as I feel that people would be very conscious of this when looking at me.