Breast Shape Guide
How to find the perfect bra for your shape
What influences the way breasts look?
Several factors play a role in determining your unique breast shape, including:
- Body fat: Your overall body fat level can shape how your breasts look. Women with lower fat percentages—especially those who exercise often—may have an “athletic” appearance with less fatty tissue in the breasts.
- Age: Over time, breast tissue tends to lose its firmness and elasticity, often resulting in a more sagging or less full look.
- Pregnancy & Breastfeeding: These stages bring hormonal and physical shifts that commonly alter the shape and volume of the breasts.
- Hormonal Fluctuations: Hormone levels can cause noticeable differences in breast appearance, such as increased fullness around the menstrual cycle.
- Genetics: Both your maternal and paternal genes contribute to the size and shape of your breasts.
Breast shape dictionary
Round
Full on both the top and bottom, this shape usually doesn’t need much support or padding. Most bra styles work well—light support or balconette bras, like our Organic Cotton Lace Balconnette offer a flattering fit.
Slender
Typically longer than wide, this shape isn’t limited to smaller sizes. For a natural lift, go for bras with medium to high center coverage. Try styles like our Organic Cotton Scoop Neck Bra.
Wide Set
Cleavage can be tricky with this shape. Look for bras with side support and angled cups to bring breasts inward and reduce side overflow. Try our Organic Cotton Triangle Bra or our Organic Cotton Plunge Foam Bra.
Athletic
Typically smaller, firmer and more muscular, this shape needs minimal support. Skip full coverage styles and go for padded, triangle, or plunge bras like our No-Show Triangle Bra or Soft Lace Plunge Bra.
Relaxed
Softer and longer in shape, this type is common after weight loss or childbirth. Full-coverage and supportive bras work best—try our Sexy Smooth V-Neck Bra or Organic Cotton Plunge Foam Bra.
Teardrop
Naturally round with less fullness on top, this shape suits most styles, like full coverage, balconette, padded and more. Try our Organic Cotton Lace Balconette or No-Show V-Neck Bra.
Asymmetrical
It’s normal for one breast to be larger than the other. Bras with removable inserts, like those in our No-Show and Organic Cotton collections let you adjust for a more balanced fit.
Bell
Fuller at the bottom and slimmer on top, this shape is common in larger busts. Avoid minimal coverage styles & try full-coverage supportive bras like our Sexy Smooth V-Neck Bra or Organic Cotton Plunge Foam Bra.
Breast shape FAQs
What levels of bra coverage does Siella offer?
We offer light, medium and full coverage bras. Whether you prefer a barely-there feel, everyday support, or full-coverage confidence, we’ve got you covered.
How do I know my breast shape?
Look at fullness, spacing, and where your breasts sit on your chest, this helps identify your shape and choose the right bra.
Can I wear any bra style with any breast shape?
Most styles can work, but some shapes benefit more from specific designs for better fit and comfort.
Find your bra size
Did you know up to 80% of women are wearing the wrong bra size?
Finding the perfect bra starts with knowing your true size. At Siella, we've made it simple with our easy-to-follow guide. Just measure around the fullest part of your bust and directly under your bust to determine your band and cup size.