This is hands-down the most comfortable bra I've ever owned.  No wires, no metal (except the hooks, and even those are covered with padding so you don't feel them).  Fabric is smooth and silky soft.  This is the first bra I've ever had that I forget I'm wearing, even at the end of the day.  My bra size is in between band and cup sizes (around a 35 C-D) so I love the simple sizing.  I bought a medium and it fits perfectly.  My only complaint is that the straps are not adjustable.  They are just a tad longer than I'd like but I can live with it.  Also, the fabric can snag easily, I found a small pull in one cup after just a couple of washings.  I'd recommend hand washing or washing on gentle with only towels or t-shirts.  Will definitely buy more of these!