Teen First Bra Size Guide
Support teens with respectful conversations, accurate measurements, and starter bra options that grow with them.
Signs they may be ready
- T-shirts fit differently or feel snug across the chest.
- Desire for coverage during school or activities increases.
- Shoulder straps from backpacks cause discomfort over developing tissue.
- Teens express curiosity or request support garments.
Measurement & conversation steps
Create a comfortable environment
Choose a private, relaxed space. Invite a trusted adult or allow the teen to measure themselves with a mirror for privacy.
Measure underbust and bust
Follow the Bra Size Calculator guide—keep the tape level and note measurements in the preferred unit. Double-check numbers together.
Run the calculator & review results
Input the measurements, discuss the band/cup combination, and explain how sister sizes work for trial and error.
Talk through fit expectations
Explain that the first size is a starting point. Encourage trying multiple styles without pressure.
Starter bra options
Soft bralettes
Provide gentle coverage without wires. Look for adjustable straps to grow with the teen.
Lightly lined T-shirt bras
Offer smooth coverage under school uniforms. Ensure cups are shallow enough to avoid gaping.
Sports bras for active days
Compression styles support new activity levels. Choose moisture-wicking fabrics for gym class.
Supportive conversation tips
- Use affirming language—highlight comfort, confidence, and personal choice rather than appearance.
- Encourage questions about body changes. Provide trusted educational resources.
- Allow teens to pick colors and styles that reflect their personality.
- Plan follow-up check-ins every few months to adjust size as growth continues.
Helpful resources
Frequently asked questions
How often should teens remeasure?→
Every 4–6 months or after noticeable growth spurts. Teens can grow quickly—keeping measurements updated prevents discomfort.
Should teens start with underwire bras?→
Not required. Start with bralettes or soft cups. Transition to underwire if desired once size stabilizes and comfort is established.
What if my teen feels embarrassed?→
Approach the conversation with empathy. Consider a professional fitter or allow solo online orders if that feels more comfortable.