Perfect Fit & Maximum Comfort: How Should a Bra Fit?

How to Tell if a Bra Fits Properly

“How should a bra fit?” It’s a question as individual as every woman’s breast shape. Still, there are some clear signs to look out for. A bra fits correctly when it offers support without pinching, pressing, or constantly shifting. Your breasts should feel supported—not squashed, and the fabric should rest comfortably against your skin without rolling, bunching, or digging in. 

Need something more specific? Here’s a detailed checklist to help you find the perfect bra for your shape and silhouette: 

The Cups: Not Too Big, Not Too Small

One of the most common signs of a poorly fitting bra is a cup that doesn’t match your breast size or shape. If your breast spills over the top or sides of the cup—or the cup presses into your tissue—it’s too small. On the other hand, if the cup wrinkles or leaves a gap between your breast and the fabric, it’s too large. 

Your breast shape matters, too: 

• Round breasts often fit well in balconette or triangle bras. 
• Teardrop-shaped or sagging breasts benefit from molded cup bras. 
• Asymmetrical breasts can be balanced with removable padding. 

The Straps: Extra Support for Larger Busts

While bras designed for fuller busts often feature wider, padded straps, many women put too much emphasis on the straps alone. In truth, straps should stabilize, not carry the full weight of your bust. 

If your shoulders show red marks, it may mean the bra isn’t providing enough support elsewhere—often due to an ill-fitting band or incorrect cup size. 

A good fit means your straps should: 

• Stay in place without slipping or digging in 
• Allow space for one finger between strap and shoulder 
• Be adjusted to equal lengths—unless you're compensating for asymmetry

The Band: The Unsung Hero of Support

Many underestimate the importance of the under bust band. In fact, it carries about 80% of your bust’s weight and plays a critical role in ensuring proper fit. 

Here’s what to watch for: 

• Your bra size includes both the cup (A, B, C...) and the band measurement in cm (e.g., 65, 70, 75, 80) 
• The band should sit straight and snug just beneath your bust 
• It must be tight enough to offer support, but never dig in or leave marks 
• If the band rides up in the back, it’s too loose 
• When trying on a new bra, the band should fit comfortably on the loosest hook, so you can tighten it over time 

The Underwires: Support or Struggle?

Some women avoid underwired bras due to bad experiences—but a well-made underwire bra should never hurt. In fact, the wire should mold to your shape and support your breast so comfortably that you hardly notice it. 

Here’s what a proper underwire fit looks like: 

• The wire rests against your ribcage, not on your breast 
• It should extend just to where your breast tissue ends 
• If the wire pokes or lifts away from your skin, the size or shape isn't right 

At Aubade, we offer both high-quality underwire bras and soft, wire-free options—perfect for sensitive skin or relaxed days. Discover our lace bralettes, triangle bras, and bustiers crafted from delicate materials that provide reliable support without the wire. 

Say Goodbye to Guesswork: How to Find the Right Bra First Time

At Aubade, we believe a perfectly fitting bra should never be a matter of luck. Instead of endlessly trying different models, take a moment to understand what fits your body best—by focusing on size, shape, material, and feel. 

How to Measure Your Bra Size (and Sister Sizes) 

Many women wear bras with the wrong cup or band size. To finally experience the comfort and support you deserve, follow these steps when measuring: 

1. Measure your undercuts: Wrap a tape measure snugly around your ribcage, directly beneath your breasts. 
2. Measure your bust: Take the measurement around the fullest part of your breasts. 
3. Calculate the difference between the two measurements to find your cup size (use a bra size chart to determine the letter). 

Understanding sister sizes can also help if your bra feels slightly off: 

• If the cup feels too small and your breast spills out, try going up a cup size and down a band size (e.g., from 75C to 70D). 
• If the band digs in, go up a band size and down a cup size (e.g., from 75C to 80B). 

The Best Bra Styles for Your Breast Shape

A bra can only fit properly if it matches your unique shape. Here's a quick overview of common breast types and the styles that suit them: 

• Round breasts: Almost all styles work—balconette and triangle bras are ideal 
• Teardrop or bell-shaped: Balconette, molded, and underwire bras 
• Asymmetrical breasts: Molded cup bras with padding or T-shirt bras 
• Side-set or East-West: Styles with side support or push-up bras 
• Small, athletic, or narrow breasts: Triangle bras, bralettes, bustiers, or push-up styles 

Ultimately, the best bra is the one you feel comfortable and confident in—there are no strict rules. Our recommendations simply guide you toward supportive, flattering options for your natural silhouette. 

Conclusion: A Perfectly Fitting Bra Shouldn’t Be Left to Chance

A bra fits perfectly when you can barely feel it—yet fully feel its impact. The right bra gives you lift, supports your shape naturally, and helps you face your day with elegance and ease. 

Focus on the harmony between band, straps, cups, and underwire, while also trusting your intuition and comfort. That way, your next bra purchase won’t be a gamble—it’ll be a confident step toward lasting support and self-assurance.