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Wacoal Convertible Underwire Bra - Halo Lace

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Wacoal's newest addition to the popular Halo Lace collection, the Wacoal Convertible Underwire Bra - Halo Lace (Wacoal 851205) is a convertible, full coverage bra that is versatile, elegant and sexy at the same time.


  • Body Fabric: 82% Nylon/ 18% Spandex.
  • Details:
  • Average to full figure, full coverage.
  • J-hook glide feature on strap allows for choice racerback / T-back position at back.
  • Soft cross-dyed lace, subtle opposites in color, carried throughout cups and sides.
  • Stretch straps, decreasing in stretch with larger cup/band for added support.
  • Inner support sling for DDD and G cup sizes.
  • Fully adjustable straps increase in width with larger cup sizes.
  • Back hook closure.


Determine Band Size

  • Wear a good-fitting, non-padded bra and face the mirror.
  • Wrap the measuring tape very snugly around your rib cage, just under your bustline. Make sure the tape is even and parallel with the floor.
  • Exhale and pull the measuring tape as tightly as possible. This is your Rib Cage measurement.
  • If the measurement is odd, add 5". If the measurement is even, add 4". If the measurement is 40" or above, add only 3-4 inches. This is your Band Size.
  • Use this chart as a guideline.
  • Select the Band Size according to your Rib Cage measurement as follows:
Rib Cage 27-28" 29-30" 31-32" 33-34" 35-36" 37-38" 39-41" 42-43" 44-45"
Band Size (USA) 32 34 36 38 40 42 44 46 48
UK 32 34 36 38 40 42 44 46 48
Europe 70 75 80 85 90 - - - -
France 85 90 95 100 105 - - - -
Italy 1 2 3 4 5 - - - -
Australia 10 12 14 16 18 - - - -
  • To confirm the Band Size, wrap the measuring tape loosely around your rib cage, just above your bustline and under your arms. This measurement should equal the Band Size.

Determine Cup Size

  1. Wear a good-fitting, non-padded bra.
  2. Wrap the measuring tape around the fullest part of your bust, making sure the tape is parallel to the floor and lying flat around your body.
  3. This will be a loose measurement. You should be able to easily insert 2 fingers sideways between the side of your breast and the tape. This is your Bust Measurement.
  4. The difference in inches between the Band Size and the Bust Measurement will determine the cup size:
Bust Minus Band 0" 1" 2" 3" 4" 5" 6" 7" 8"
Cup Size (USA) AA A B C D DD/E DDD/F G H
Europe AA A B C D E F G H
France AA A B C D E F G H
Italy - A B C D DD E F FF
Australia - A B C D DD E F FF


Wacoal was founded in 1946 by Japanese Jewelry Designer Koichi Tsukamato after he noticed that Japanese women had started wearing Western clothing and lingerie. Since then, Wacoal has grown to become one of the premier women’s lingerie companies, famous for their focus on superior fit, exceptional quality, extraordinary comfort, and bold innovation. With sizes that range from 30D to 44H, you’re bound to find the perfect lingerie for you!

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