I wear black tank tops under my black polo work shirts every day. I usually try to find something cheap like these and buy 4 or 5 at a time. These do the trick, but if you're looking for something that "stays down" for layering purposes I would l look into some with more cotton. I also wear them sometimes when I'm off of work with a pair of athletic shorts. Just do NOT wear them without a bra! I did once and even though my boyfriend enjoyed the show, we all know that can be a bit embarassing. Overall nice stretchy black tank, and just great for the price.