How to Find Your Perfect Bralette Size: A Step-by-Step Guide
By Honeydew Intimates | Published: 2026-09-02
Category: How-to Guides
Learn to measure for a bralette, decode size charts, and choose a comfortable fit—even when your size falls between options.
Quick Answer
To find your bralette size, measure your underbust and full bust in inches, then subtract the underbust from the bust to get your cup size. Use a bralette size chart—like the one at Honeydew Intimates—to match your measurements to the right size. When in doubt, size up for comfort, especially with wireless styles.
Bralettes have become a staple in many wardrobes because they offer wireless comfort and a relaxed fit. Unlike underwired bras, bralettes often use stretchy fabrics and simpler sizing, which can make finding the right size feel confusing. But with a few measurements and a little know-how, you can nail your fit every time.
This guide walks you through measuring for a bralette, reading a size chart, and testing the fit so you feel supported and comfortable—whether you're lounging at home or heading out.
How Bralette Sizing Differs from Regular Bras
Traditional bra sizing relies on a band measurement and a cup size, like 34C. Bralettes, however, often use S/M/L sizing or stretchy ribbed fabrics that adapt to your shape. That means the same bralette might fit a range of band and cup sizes, so you need to focus on how the fabric feels and where the band sits.
Because bralettes don't have underwires, they provide lighter support and more freedom of movement. This makes them ideal for lounging, sleep, or low-impact activities. But it also means the fit is less precise, so you'll need to rely on measurements and a bit of trial and error.
Step 1: Measure Your Underbust and Full Bust
Start with a soft measuring tape. Wrap it snugly around your ribcage, just under your bust, and note the measurement in inches—this is your underbust. Then, measure around the fullest part of your bust, keeping the tape parallel to the floor. That's your full bust measurement.
Write both numbers down. You'll use them to calculate your cup size and to compare against a bralette size chart. For the most accurate reading, measure without a bra or in a non-padded one.
- Use inches for simplicity, as most size charts are in inches.
- Keep the tape level and snug but not tight.
Step 2: Calculate Your Cup Size
Subtract your underbust measurement from your full bust measurement. The difference in inches roughly corresponds to your cup size: 1 inch is an A, 2 inches a B, 3 inches a C, and so on. For example, if your underbust is 30 inches and your bust is 33 inches, the 3-inch difference suggests a C cup.
This calculation is a starting point. Bralettes often cater to a range of cup sizes, so you may find that a small fits a 32B and a 34A, while a medium fits a 34C and a 36B. Use your cup size to narrow down which size range to try first.
Step 3: Check the Size Chart
Every brand has its own sizing, so always consult the specific bralette size chart. At Honeydew Intimates, for example, the Emma Bralette in Sea Moss is a triangle pull-over style with a ribbed fabric that stretches. The size chart likely maps your underbust and cup size to a small, medium, or large.

Look for your measurements on the chart and note the recommended size. If you fall between sizes, consider your preference: do you want a snugger fit for more support, or a looser fit for all-day comfort? When in doubt, sizing up is often safer for wireless styles.
Step 4: Try It On and Test the Fit
Once your bralette arrives, try it on and move around. The band should sit comfortably below your bust without digging in or riding up. The straps shouldn't slip off your shoulders, and the cups should fully cover your breasts without spillage or gaps.
Raise your arms, bend over, and twist side to side. If the bralette shifts or feels restrictive, adjust the straps or try a different size. Remember that bralettes stretch slightly with wear, so a snug initial fit is normal.
- Check that the underbust band stays in place when you lift your arms.
- Make sure the fabric doesn't pinch or leave red marks after a few minutes.
Step-by-Step Bralette Sizing
- Measure your underbust and full bust: Use a soft tape measure to get your underbust (ribcage) and full bust (fullest part) in inches. Mistake to avoid: measuring over a padded bra or pulling the tape too tight.
- Calculate your cup size: Subtract underbust from bust; the difference in inches approximates your cup letter. Checkpoint: A 1-inch difference is an A cup, 2-inch a B, 3-inch a C.
- Consult the brand's size chart: Match your measurements to the chart to find your recommended size (S/M/L). If between sizes, size up for comfort, especially with stretchy fabrics.
- Try it on and move: Wear the bralette and test its fit by raising your arms and bending. The band should stay put and not dig; adjust size if it shifts.
Bralettes That Fit Well
- Emma Bralette in Sea Moss: Soft, stretchy ribbed fabric with a triangle pull-over design and a scallop-edge logo waistband. The stretchy ribbed fabric adapts to your shape, making it forgiving if you're between sizes. The pull-over style is easy to put on and comfortable for everyday wear.
Finding your perfect bralette size doesn't have to be a guessing game. With a few simple measurements and a clear understanding of how bralettes fit, you can choose a style that feels as good as it looks. Remember to check the size chart, and when you're between sizes, prioritize comfort—your bralette should feel like a second skin.



