How to Reduce Lingerie and Bra Returns
Bra fit is the hardest problem in apparel sizing: two interacting measurements, widespread mis-sizing, and a garment where being one step out is immediately uncomfortable. The upside is that better guidance moves the needle further here than anywhere else.
Quick answers
- Why do bras get returned?
- Band fit — most people wear one too loose
- How is cup size calculated?
- Bust measurement minus band measurement
- What's a sister size?
- Same cup volume, different band
- Biggest lever?
- Teaching band-first fitting, not just showing a chart
Bra Returns: Cause and Fix
| Cause | Fix |
|---|---|
| Band too loose | Teach band-first fitting |
| Cup wrong | Explain bust minus band |
| Wearing the wrong size for years | Offer a fit guide, not just a chart |
| Style unsuitable | State what each style supports |
| Sister-size confusion | Publish sister sizes explicitly |
Notes
The band does the work, and most people get it wrong. The band provides the majority of the support, and it should be snug. A great many people wear a band that's too large and a cup that's too small to compensate. If you teach one thing on the product page, teach band-first fitting.
A chart alone is not enough here. Bra sizing is the one category where a table of numbers genuinely doesn't suffice. Customers need to be taught how to measure and how a correct fit should feel — snug band, no spillage, centre gore lying flat. That's a guide, not a chart.
Publish sister sizes. A 34C, 32D, and 36B share the same cup volume. Telling customers this — explicitly, on the product page — gives them a second option when their first choice is out of stock or fits imperfectly, and it turns a return into a swap.
Match style to need. A plunge, a balconette, and a full-cup support differently and suit different shapes. Saying plainly which body types and which outfits each style is for prevents the 'right size, wrong bra' return that a chart can never catch.
FAQs
Why is bra fit so hard to get right online?
Two interacting measurements (band and cup), widespread historic mis-sizing, and a garment where being one step out is immediately uncomfortable. Most people wear a band that's too loose and a cup that's too small, so their 'usual size' is already wrong.
How do I reduce bra returns?
Teach band-first fitting rather than just publishing a chart — the band provides most of the support and should be snug. Explain how cup size is derived (bust minus band), publish sister sizes explicitly, and say which body types each style suits.
What is a sister size in bras?
A different bra size with the same cup volume — a 34C, 32D, and 36B all hold the same volume on different band widths. Publishing sister sizes gives customers a viable alternative when their usual size is out of stock or fits imperfectly.
Need this on your store?
Tailor Size Guide ships pre-built size charts for Shopify.