This is the most comfortable bra I have ever had.  It has small removable foam-type pads (very thin) that are like ones in bathing suits.  You definitely need to remove them before washing the bra.  It is a pullover style and super comfy!  The padding is just enough to give a teeny bit of support while also hiding your nipples.  And as an added bonus you can even cross the straps in back for an X-style.  The "one size" fits a lot of sizes but don't worry.  I am a 36 A or B and it is perfect.