I range through all different combos of 36/38 and B/C so I ordered a bunch of these to try out. The 38C fit best (making me think this runs a little small) except there wasn't enough adjustment left for the straps, for me they were just a little too long. My only other complaint is that these were shipped all crushed up in a bag and the cups were so lumpy and bumpy, I don't know if they would have ever smoothed back out. Really poor choice of shipping medium.