Jockey Bra Size Guide & ConverterUS everyday essentials with molded cups, microfiber wings, and familiar even-numbered bands.
Use our Jockey fit intel to translate your everyday size into the label's molded bras and smoothing staples without guesswork.
Jockey size snapshot
Sizing system
US band/cup sizing with even-numbered bands and double-letter cups (DD, DDD/F, G).
Band range
32–40 with select 42/44 sizes
Cup range
A–DDD across core styles
Best for
Jockey focuses on comfort-first fabrics, wireless silhouettes, and light structure for relaxed wear.
- Jockey bands lean stretchy; plan for faster relaxation and consider adding the sister size down for backup.
- Jockey cups balance average projection with rounded silhouettes that suit a wide range of shapes.
- Jockey invests in molded T-shirt bras, smooth microfiber, and discreet seams for invisible coverage.
Convert your size into Jockey
Pick the brand and size you already wear. We pre-selected Jockey on the right so you can see the equivalent in one click.
Convert to Jockey
Size Guide
Enter your current bra size and select the brands you want to convert between. The converter will help you find your equivalent size in different brands.
Tips for Best Results:
- Enter your size exactly as it appears on your current bra
- Make sure to select both the source and target brands
- Different brands may have slightly different sizing standards
- Always try on bras when possible for the best fit
Fit callouts worth noting
Bands relax quickly with wear
Jockey often uses soft elastics that ease up after a few wears, especially in wireless or lounge styles.
Try this:
Order your regular band and the sister size down so you can choose the secure feel you prefer.
Cups follow average depth
Jockey cups balance coverage and projection, suiting most shapes once the band feels secure.
Try this:
Stick to your known cup, adjusting only if style-specific feedback suggests otherwise.
Check necklines on molded T-shirt bras
Different Jockey T-shirt cuts shift strap width and neckline height, changing how the foam sits on your bust.
Try this:
Compare plunge vs. full coverage molds to see which anchors at the gore without gaping.
Try-on strategy playbook
Dial in your baseline size
- Run the ABTF calculator or your trusted measurement routine first so the converter starts from fresh numbers.
- Keep your most reliable bra size handy; the converter maps it directly into Jockey sizing.
- Note the style you are targeting (plunge, balconette, wireless) so you can sanity-check the fit advice below.
Plan for stretch-friendly bands
- Order your usual band alongside the sister size down to see which feels secure after break-in.
- If you prefer lounge-level comfort, keep the stretchier option for home wear and reserve the firmer one for outings.
- Use easy return windows to compare band tension across at least two sizes before committing.
Compare coverage levels in molded cups
- Try both plunge and full-coverage molds to see which neckline lays flat.
- Check for gaping near the gore; molded cups should tack without floating.
- If straps sit wide, swap to a plunge or racerback clip to keep cups anchored.
Keep exploring
How to Measure Your Bra Size at Home
Step-by-step measuring tips before you add new pieces to your drawer.
Read moreFit Check Wizard
Troubleshoot gaping, spillover, or band riding in minutes with guided diagnostics.
Read moreSister Size Explorer
See every sister size combination when you need extra breathing room or cup depth.
Read moreKeyword prompts people use
Use or monitor these search phrases when you are researching Jockey sizing. They surface comparison guides, calculators, and real shopper feedback.
Refresh your measurements
Accurate numbers keep your converter results honest. Grab a soft tape and follow the pro guide below before you submit that cart.
Professional Bra Measurement Guide
Essential Tools for Accurate Measurement
Required Equipment
- Soft measuring tape (preferably in inches)
- Non-padded bra or no bra
- Full-length mirror
- Notepad for recording measurements
Measurement Preparation
- Stand straight with shoulders relaxed
- Wear a non-padded bra or no bra
- Ensure the measuring tape is parallel to the floor
- Take measurements in a well-lit room
Step-by-Step Measurement Guide
Band Size Measurement
- Measure under your bust, where the bra band sits
- Keep the tape snug but not tight
- Ensure the tape is parallel to the floor
- Round to the nearest even number
Bust Size Measurement
- Measure around the fullest part of your bust
- Keep the tape parallel to the floor
- Don't pull the tape too tight
- Record the measurement in inches
Cup Size Calculation
- Subtract band size from bust measurement
- Use the difference to determine cup size
- Each inch difference represents one cup size
- Example: 1" = A, 2" = B, 3" = C, etc.
Professional Tips for Accurate Results
Common Measurement Mistakes
- Measuring over a padded bra
- Pulling the tape too tight
- Not keeping the tape parallel to the floor
- Measuring at the wrong position
Professional Recommendations
- Take measurements at least twice for accuracy
- Measure at the same time each day
- Consider professional fitting for best results
- Update measurements every 6 months
Frequently asked questions
Does Jockey run true to size?
They skew relaxed. Jockey bands soften quickly, so keep the sister size down handy if you prefer extra hold.
What if I am between band sizes at Jockey?
Include the smaller band so you have a backup once the elastic relaxes after a few wears.
Which Jockey styles work best for comfort-first days?
For comfort-first days, focus on Jockey's molded T-shirt bras and demi styles—they smooth under tees while keeping the neckline easy to work with.
Can I convert from other sizing systems into Jockey?
Yes. Jockey follows US sizing, so convert from UK or EU using our tool and remember double letters translate differently across systems.