A Cup Sizeor

A Cup Sizeor

A Cup Size

It's important to find a bra that is well constructed, and the right size for you. A bra that doesn't fit or is poorly made can cause shoulder, neck and back tension, sagging breasts, and uncomfortable bulges around your breasts and upper arms and even where it fits across your back. Eeek!


“We’ve always focused on this idea, ‘Are you wearing the right size?’” said Heidi Zak, the ThirdLove co-founder and chief executive. According to Ms. Zak, the company has consistently used the concept that people are wearing the wrong size in its marketing. She considers the statistic an invitation for shoppers to find bras that work, not an admonition. LaJean Lawson, a scientist and consultant for the Champion sportswear brand, explained that the cup size is usually based on the difference between the band and bust measurements (below the rib cage and over the fullest part of the breast). The cup is measured by volume, and, confusingly, that volume can stay the same as you move down a band size and up a cup size, or up a band size and down a cup size. (Source:

A bra size usually consists of two values — the numeric and letter one. The numeric one tells you about how long is the bra band (frame). It is system-adjusted so that it will differ around the countries. The value that doesn't change is the letter part of the size. It gives you an idea of how big the cup is. It goes up as the Latin alphabet; however, you will find DD instead of E and DDD instead of F in some American brands. (Source: www.omnicalculator.com)


In short, the number represents your band size. The letter corresponds with your cup size, which is the difference between the largest part of your bust and your band size (more on that later). Taken together, you’ve got your bra size — or at least a version of it, because every bra differs slightly from manufacturer to manufacturer, Harrington notes. So you might have a better fit in a different size than what was originally measured. And that’s OK!

Round the measurement to the nearest whole number and you’ve got your band size. Depending on the manufacturer, you may need to add four if the measurement is even and add five if the number is odd. So if you measured 34 inches, your band size would be 38; if you measured 27 inches, your band size would be 32. Historically, this has been standard practice in bra measuring and manufacturing — and no one is really sure why. Some speculate the “plus-four rule” was to accommodate for breathing room when bras were made out of un-stretchy material like silk and satin. Popular bra-fit community r/ABraThatFits traced the plus-four method back to the 1960s when bra measurement practices changed. Again, it’s important to consult each manufacturer's fit guide to determine if you’ll need to do this addition. (Source: www.buzzfeed.com)



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