Hi,
Does anyone know any reason why one should not switch in different underwires into a bra? Different as in different size/shape. Is there some mathematical reason? It seems to me that my rib cage is narrow side to side but deep front to back. So I need a narrower curved wire than the standard combinations for band+cup. I've got the right size wires so I thought I'd try it. Not earth-shattering, just thought I'd ask.
Pora
I also have a narrow ribcage, and I've pondered this a few times. You might find that the shape the fabric of the band and the cup as it is cut to accommodate the wider wire will pull the narrower shape out at the sides. You may want to cut a band that is the same shape as the wire where the cups fit into it...
If the wider wire is like this, | | \____/ then the 'hole' in the band will be the same profile. For a band shaped more like this: | | \__/ then you'll need a 'hole' of the same size and shape, with the bulk for the breast in the same volume of cup cut deeper from chest wall to apex too.
Engineering problem: same volume, different shape...
Yes, this was my thought too.
P.
You might as well try it, if you don't like it, you can slide the old ones back in. There are various issues involved.
Different size and style underwires are different lengths. You could end up with an underwire that is too long or too short. In some styles of bra, a too short one may be OK, in other styles, the bra wouldn't be able to function correctly.
If your new underwire has a tighter curve, it may make your bra bump down more at the bottom of the cup. Once again, depending on the style of bra, this may be fine, or it may be a problem.
Changing the underwire shape can change the volume of the cup. If the cup volume is correct now, it may not be right after changing the underwire.
--Betsy
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