Five Signs Your Bra Does Not Fit, and What Each One Means
Fit problems are not random. Each one is pointing at something specific, and once you can read them you stop guessing in changing rooms.
Here are the five that come up most, and what each is actually telling you.
1. The band rides up your back
What it means: the band is too big. This is the most common problem by a wide margin, and it is the one that causes most of the others.
The fix: go down a band size and up a cup. A 38C becomes a 36D. Check you can fasten it on the loosest hook, not the tightest.
2. Straps dig into your shoulders
What it means: usually the band again. When the band stops supporting, the straps take over a job they were never sized for. Occasionally it is just narrow straps carrying a full bust.
The fix: firmer band first. Then look for straps at least three quarters of an inch wide, ideally cushioned. Set them almost loose and tighten only until they stay put.
3. You are spilling over the top or the sides
What it means: the cup is too small, or the shape is wrong for you. If it is a smooth overflow at the top, size up the cup. If it is at the side near your underarm, the cup shape probably does not suit you.
The fix: up one cup size, keeping the band the same. If it happens across every brand at every size, try a different cup construction. Side support panels help a lot here.

4. The cup gapes or wrinkles
What it means: too much room. Either the cup is too big, or the shape does not match how your breast tissue sits.
The fix: down one cup size first. If it still wrinkles only at the top, the cup is cut for a fuller upper breast than yours. Look for stretch lace at the top edge, which adapts rather than gaping.
5. The uniboob
What it means: the centre panel between the cups, the gore, is not sitting flat against your sternum. There is not enough separation because the cups are not deep enough, or there is no structure between them.
The fix: check the gore. It should lie flat against your breastbone. If it floats, the cup is too small. If it lies flat and you still have no separation, you want a bra with proper cup seaming rather than a single moulded piece.
The order to check things in
Always band first. It causes so many of the others that fixing it often resolves two or three problems at once. Then cup size. Then cup shape.
And a reminder worth repeating: none of these are signs that something is wrong with your body. They are signs that a garment was cut to an average that does not include you. That is a pattern problem, not a personal one.
Stuck on one of these? Tell us which and we will help you work out the next move.