Fit problem
Cup Gap
Cup gaps can come from cup volume, shape mismatch, or a band that changes how the cups sit.
Quick fix checklist
- Step 1: Check whether the band stays level and firm.
- Step 2: Check whether the cup is spilling, gapping, or sitting on tissue.
- Step 3: Try a sister size when the cup volume is close but the band is off.
Sister size to try
Using 34D as a data example, 36C is the looser-band sister size in this dataset. Try this path only when the cup volume is close and the band feels too firm; if the cup itself is too large, remeasure instead.
View 36C sister sizesWhy this usually happens
Cup volume may be too large
Empty space can mean the cup is larger than your current shape needs.
Shape can matter as much as size
A molded or tall cup can gap even when the size is close if the shape does not match.
Ready when you are
If several fit problems show up together, start with fresh measurements.
Other fit problems
FAQ
Why is there a gap in the cup?
Cup gaps can come from cup volume, shape mismatch, or a band that changes how the cups sit.
What should I check first when cup gap?
Check whether the band stays level and firm, then check the cup before adjusting straps or wires.
Can a sister size help?
It can help when the cup volume is close but the band feels too loose or too tight. If several parts feel wrong, remeasure first.