How to Know If Your Lingerie Fits Correctly

Let’s be real—most of us have been wearing the wrong bra size for years. 😅 You’re not alone: studies show that up to 80% of women are wearing incorrectly fitted bras (University of Portsmouth, 2008). That means discomfort, poor posture, and even long-term back pain. But how do you know if your lingerie fits correctly? As a lingerie fit specialist with over a decade in the industry, I’m breaking down the signs, fixes, and key measurements you need.

Red Flags Your Lingerie Doesn’t Fit

If any of these sound familiar, it’s time for a fit check:

• Straps digging into your shoulders
• Band riding up your back
• Spillage over cups (hello, quad-boob!)
• Cups gapping when fastened
• Underwire poking or not lying flat

The Right Way to Measure Yourself

Forget the tape measure trick once and done. Proper fitting involves two measurements:

1. Band Size: Wrap the tape snugly around your ribcage, just under the bust. Round to the nearest inch. If it’s even, add 4; if odd, add 5 (this adjusts for UK vs US standards).
2. Bust Size: Measure around the fullest part of your bust, keeping the tape parallel to the floor.

Subtract band from bust measurement:

For example: 34″ band + 37″ bust = 3″ difference = 34C.

Fit Check: What “Correct” Actually Looks Like

Now that you’ve got your number, here’s how a well-fitting bra should feel and look:

• Band: Parallel to the floor, snug but not tight (you should fit two fingers underneath).
• Cups: No spillage or gaping. The underwire should fully encase your breast tissue and lie flat against your sternum.
• Straps: Bear only 10–20% of the weight. If they’re doing all the work, your band is too loose.
• Center Gore: Should sit flush against your chest. If it floats, you might need a smaller cup or different style.

Pro tip: Always fasten your bra on the loosest hook when new. As the band stretches over time, you can tighten it gradually—this doubles your bra’s lifespan!

Why Sizing Varies by Brand

Here’s the tea: there’s no universal standard. A 34B at Victoria’s Secret isn’t the same as a 34B at Panache. That’s why knowing your true size is just step one. Below is a simplified comparison:

This is where many shoppers go wrong—they stick to one brand without adjusting for cut. My advice? Get sized professionally at a specialty boutique or use brands with strong return policies.

Final Thoughts: Comfort Is Non-Negotiable

Your lingerie fit impacts more than cleavage—it affects posture, confidence, and daily comfort. Don’t guess your size. Measure, try, and prioritize support over aesthetics. And remember: the perfect bra shouldn’t hurt. If it does, it’s not magic—it’s a miss.