Prima Donna Response: The satin wire cup (with out the 3-part panel) may feel like it is smaller in the cup because of the sturdy simplex material. An H cup will indeed, fit an H cup- however because of the limited range of the material - where the customer has more depth or if she is fuller all around as opposed to being heavier on the bottom of the breast will make a difference on how the bra is filled out. She may actually be an I cup- or an H cup in a material with more give/depth like the Madison and/or Deauville. Nancy from Park City