Your exact size, in two measurements

A well-fitted bra changes everything

A poor fit can cause back and shoulder pain and affect your posture. With this guide from Boutique Canicule, discover your true size and finally wear the lingerie that's right for you — with comfort, support and elegance.

• A tape measure

  A soft sewing tape — not a rigid ruler.

• A mirror

  To make sure the tape stays level.

• A thin bra

  Or measure directly on your skin for greater accuracy.

• Pen & paper

  To jot down your two key measurements.

1. 1

   Take your band (underbust) measurement

   Place the tape measure directly under your bust, all the way around your ribcage. The tape should be perfectly level, neither too tight nor too loose — you should be able to slip two fingers underneath. Note this measurement in centimetres.

   Tip:If you get an odd number (e.g. 83 cm), round to the nearest even number. This measurement gives you your band size: 80, 85, 90, 95…

2. 2

   Take your bust measurement (at the fullest point)

   Wrap the tape measure around the fullest part of your bust, at nipple level. Keep the tape level across your back. Don't compress — let your breasts keep their natural shape.

   Tip:Take this measurement standing up, with your arms slightly away from your body. Measure twice to confirm.

3. 3

   Calculate your cup size

   Subtract your band (underbust) measurement (step 1) from your bust measurement (step 2). The difference gives you your cup size, as shown in the chart below.

   Example:96 cm (bust) − 84 cm (underbust) = 12 cm → C cup → Full size: 85C.

4. 4

   Check the fit while wearing the bra

   Make sure the underwire lies flat against your ribcage, the straps don't dig in, the band sits level across your back, and your breasts are fully contained in the cups without spilling over.

   If the fit isn't perfect:Try one cup size up or down. If the 85C feels too snug, try the 85D. If the band feels too loose, try the 80C.

• ≤ 10 cm AA
• 10–11 cm A
• 12–13 cm B
• 14–15 cm C
• 16–17 cm D
• 18–19 cm E
• 20–21 cm F
• ≥ 22 cm G+

• Pulling the tape too tight

  If you compress your bust while measuring, you'll end up with a cup size that's too small. The tape should just skim your skin without pressing in.

• Tape not level

  A tape that rides up at the back throws off both measurements. Use a mirror or ask someone to check from behind.

• Measuring over thick clothing

  A sweater or shirt adds several centimetres. Always measure over a thin bra or directly on your skin.

• Measuring only once

  Take each measurement twice and use the average. Your body can vary slightly depending on the time of day.

• Forgetting to remeasure after pregnancy

  Your bust and ribcage often change after pregnancy or breastfeeding. Take new measurements after any major change.

• Ignoring the actual fit

  The size on the label is just a starting point, and fits vary from brand to brand. Feel free to contact us for personalized advice.