Custom Sports Bra Fit Project

We are conducting a research and development project to create custom-fitted sports bras using advanced 3D scanning and measurement techniques. The goal is to design a bra that minimizes movement and maximizes comfort, using a supportive structure tailored to your unique anatomy. Participation involves submitting a few short videos and some key measurements. In appreciation for your help, you will receive a free custom sports bra once prototypes are ready.

Contact Information (Optional)

You can participate anonymously or provide your email to receive updates about the project and be notified when your prototype is ready.

Note: Email address required to receive prototype updates

How the process works:

  • 3D Scanning: Please record four short (30–45 second) videos of your chest in the following positions:
    1. Standing straight
    2. Leaning forward at 45° (so the breasts hang off the chest)
    3. Bent over at 90° (so the breasts fully hang down)
    4. Lying on your back
    For each video, have someone else move/orbit the camera slowly around, keeping at least one breast in frame and the camera about 20–40 cm away from your skin. Show all sides, keep as still as possible, and use even lighting. Submit one video per position.
  • Calibration: To ensure accurate sizing, please measure the nipple-to-nipple distance while standing (using a measuring tape). You may wear pasties during filming and measurement - if so, measure from the center of one pasty to the center of the other.
  • Bra Fit Measurements: For optimal fit, please provide underbust measurements in three ways—loose (no pressure), comfortably snug (how you would want a band to feel), and as tight as possible. For the bust, measure while standing, leaning over at 90° (breasts hanging), and lying on your back.
  • Privacy: All videos and data are anonymized and used solely for this project. Your privacy and comfort are our top priorities.

Step 1: Upload Videos

Video Recording Instructions

IMPORTANT: Please have someone else film you. You must remain completely still during each video - any movement will prevent proper 3D tracking. For each video: keep the camera 20-40 cm away from your skin, move slowly around your body, maintain even lighting, and keep at least one breast in frame at all times.

Video 1: Standing Straight

Stand with your arms at your sides. Remain completely still while someone slowly moves/orbits the camera around your body to capture all angles (above/below & left/right).

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Video 2: Leaning Forward 45°

Lean forward at a 45-degree angle so your breasts hang off your chest. Hold onto a chair, table, or wall to stabilize yourself and hold this position completely still while someone slowly moves the camera around. The person filming should position themselves under your breasts and film upwards and around to left/right and top/bottom to capture the all sides and the underside of the breasts.

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Video 3: Bent Over 90°

Bend over at a 90-degree angle so your breasts fully hang down. Hold onto a chair, table, or wall to stabilize yourself and hold this position completely still while someone slowly moves the camera around. The person filming should position themselves under your breasts and film upwards and around to left/right and top/bottom to capture the all sides of the breasts and the inframammary fold profile.

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Video 4: Lying on Back

Lie flat on your back. Remain completely still while someone slowly moves/orbits the camera around (all sides, top/bottom & left/right).

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Step 2: Measurements

Bra Fitting Guide

Click the image above to open the A Bra That Fits calculator for additional sizing help

Measurement Instructions

Please provide the following measurements in millimeters (mm). Use a flexible measuring tape and measure around the fullest part of your bust for bust measurements.

Calibration Measurement

Measure the distance between your nipples while standing straight. You may wear pasties during filming and measurement - if so, measure from the center of one pasty to the center of the other.

Underbust Measurements

Measure around your ribcage with no pressure from the tape.

Measure with the tape snug but comfortable, as you'd want a bra band to feel.

Measure as tightly as possible without breaking the tape.

Bust Measurements

Measure around the fullest part of your bust while standing straight.

Measure around the fullest part while leaning forward at 90 degrees.

Measure around the fullest part while lying flat on your back.

Step 3: Additional Information

Materials & Preferences

Please share any preferences, comments, or advice that could help us create the best possible sports bra for you.

This information helps us understand your specific needs and preferences for the prototype.

Step 4: Privacy & Submit

Privacy & Consent

Your privacy is our top priority. All videos and data are anonymized and used solely for this research project.

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