I think it looks sloppy and trashy. Anything but sexy. Sexy is wearing a sheer cotton or linen blouse and having your bra show through just a bit. But wearing a tank top with straps showing or falling is lazy and low class. More women should invest in wrap around mirrors so they can see how they look to others. And if their friends think they look cool with their muffin tops showing and half their underwear out...then they need new friends. Sheesh.