Sports Bra Size Calculator
Find the exact size you need based on activity impact level — engineered to reduce up to 83% of breast bounce.
📐 Performance Parameters
Measure just below your breasts
Fullest point across the chest
Activity Impact Level
🏃♀️ High Impact — Choose Support Style
Sports Bra FAQs
How should a sports bra fit compared to a normal bra?+
It should feel noticeably tighter and more secure than your daily bra, but not restrict breathing. The underband needs to sit level across your back, and you should be able to fit exactly two fingers under the elastic band.
Do I size down in a sports bra?+
If you are purchasing a compression style bra for high-impact activities, going down one cup size can help lock tissue in place. For encapsulation styles, choose a sister size with a smaller band and larger cup (e.g., from 34D to 32DD) to secure the band anchor.
What is the difference between compression and encapsulation sports bras?+
Compression bras flatten the breast tissue against the chest to restrict bounce (great for A-D cups). Encapsulation styles feature separate cups to support and isolate each breast (recommended for DD+ cups and serious bounce control).
Should I wear an underwired sports bra?+
For fuller busts, an underwired encapsulation sports bra provides the highest level of bounce reduction. For yoga, pilates, or smaller busts, wireless styles offer greater flexibility and sufficient support.