How the fit works

Every option here carries a single letter and no number in front of it. That is not an omission: there is no band, so there is nothing for a band number to describe. The letter is the moulded volume of the cup and nothing else.

The translation from your usual size is short. Take the cup letter from the bra that fits you best and ignore the band. A 34C and a 36C both point at C here, because the part that changed between them was the band, and the band is the part this garment does not have.

If you sit between letters in ordinary bras, take the larger one. A cup slightly too large lies flat against the skin and its outer edge disappears under a dress. A cup too small rides up along the top edge and draws exactly the line you were trying to hide.

Placement decides more than size does. The outer edge goes down first, and the cup is pressed inward from there toward the centre. Starting at the centre is what leaves one side higher than the other, and it is the commonest reason a correctly sized cup looks wrong in a mirror.

Wear time is the other half of fit. A larger cup covers more skin, holds more heat and gives the adhesive more to argue with, so the same letter behaves differently in a cool room and on a dance floor. Nothing about that is a fault in the object.

None of this is on a size chart because there is no size chart to put it on. What the maker states is the letter, and everything else here is our reading of what the letter can and cannot do.