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Strap separation calculations? » All bra adventures

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Strap separation calculations?

I've been thinking of trying some new (to me) brands, such as EM and Kris. What's the easiest way to figure out if a bra's straps are going to be too wide set when you don't have physical access to the bra? Should I use some formula such as

[3/4(cup width) x 2] + (cup separation) = approximate front strap separation
(Since most straps seem to be about a quarter of the cup distance from the outside wire)

I know I theoretically could check other users with a similar frame, but I haven't quite found my boob twin - honestly, I may have and then forgot. Like my pen that turned out to be in my hand last week.

Strap separation would be a nice optional measurement, or a measurement from the outside of the wire to the outside of the strap (which could get confusing, I know); otherwise, what do you recommend?

Filed under Bratabase

Shared on Mar 17, 2016 Flag this


  • I try to use other bras I know as a frame of reference. So, if a reviewer or bra blogger in my size range can successfully wear most of Freya and Fantasie's range (when every single one of them are too wide-set for me) and then she tries EM and says "wow, these straps are really far apart, it's kind of an issue" then it's obvious the problem will be even worse on me and there's no point in my trying them.
    Or if I see a fitting thread with the person's measurements, and she has a similar size to me and a similar frame width, and it's obvious from the photos that the straps are in her armpits, that tells me it's not going to work on me.

  • That's a good point; I've had a hard time finding bloggers in my size/shape, but didn't think about how the rest could be useful otherwise. Thank you for that

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