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A super-smart choice for sports like cycling and kickboxing, our Tonic Crop Bra features pull-on racerback styling, removable pads and mesh panels for breathability. Designed for A/B cups, it provides medium-impact support.
1. Band Size: measure rib cage directly under the breast - the tape measure should be level around the body - take a snug measurement. Add 5” to this measurement and round down to the nearest even number to determine your band size. Ex: 30” + 5” = 35”. Round down to 34”. Your band size is 34.
2. Over Bust Measurement: measure around the fullest part of the breast - again keeping the tape measure level - the tape measure should not compress the breast.
3. To Calculate Cup Size: Subtract the band size from the overbust measurement. If the difference is 1” = A cup, 2” = B cup, 3”= C cup, 4” = D cup, 5” = DD cup, etc. Ex: Overbust measurement is 36” minus band size of 34” = 2”. 2” = B Cup. Your bra size is a 34B.
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