Bralette and Briefs Set Sizing: How to Get the Right Fit
By Being Wear | Published: 2026-10-20
Category: Buying Guides
Learn how to size a bralette and briefs set with practical measuring tips, fit rules, and trade-offs to help you choose the right size every time.
Quick answer
To get the right fit for a bralette and briefs set, measure your underbust and hips, then compare them to the brand's size chart—prioritize the larger measurement if you fall between sizes.
Why bralette sizing differs from bra sizing
Bralettes are designed for comfort-first days, with a flexible, form-hugging fit that moves with you—not against you. Unlike underwired bras, they don't rely on cup and band measurements in the same way. Instead, your underbust and bust measurements give you a better starting point.
Because the fabric is stretchy and forgiving, you have more leeway with fit, but that doesn't mean size doesn't matter. A bralette that's too loose won't provide enough support, and one that's too tight can dig into your skin. Measuring correctly helps you avoid both.
How briefs sizing works
Briefs sizing is usually based on hip and waist measurements. Your hip measurement is the most important, but your waist can also influence the fit, especially if you carry weight around your midsection.
If you're between sizes, consider the fabric and rise of the briefs. A higher rise may feel more comfortable if you prefer more coverage, while a lower rise might sit better if you have a shorter torso.
Remember that sizes can vary between brands, so always check the specific size chart for the set you're buying. Don't assume your usual size will be the same.
What to do if you're between sizes
If your measurements fall between two sizes, the best approach is to size up for comfort, especially since bralettes and briefs are meant for everyday wear. A slightly looser fit is more forgiving than one that's too tight.
Another option is to mix and match sizes. Many sets, including Being Sets, allow you to choose different sizes for the top and bottom. This is a great solution if your bust and hip measurements point to different sizes.
Don't be afraid to buy two sizes and return the one that doesn't fit. Most online stores have easy return policies, and it's better to try both than to guess.
Decision rules for choosing your size
- Measure your underbust: Wrap a measuring tape snugly around your ribcage, just under your bust. Keep the tape level and breathe normally. Record the number in inches or centimeters. Do this in the morning when your body is least swollen.
- Measure your bust: Wrap the tape around the fullest part of your bust, keeping it parallel to the floor. Don't pull too tight—the tape should sit comfortably against your skin. Wear a non-padded bra or no bra for the most accurate measurement.
- Measure your hips: Stand with your feet together and measure around the fullest part of your hips, usually about 7-8 inches below your waist. Measure twice to ensure accuracy.
- Compare to the size chart: Use your underbust and bust measurements for the bralette, and your hip measurement for the briefs. Find your size on the brand's size chart. If your measurements fall into different sizes for top and bottom, consider ordering different sizes for each piece.
- Decide on your fit preference: If you prefer a snug, supportive fit, choose your exact size. If you prefer a relaxed, comfortable fit for all-day wear, size up. Remember that bralettes are meant to be comfortable, so don't size down for a tighter look.
Product facts
- bralette and briefs set: Being Sets (top and bottom) save you more, and they aren't restricted to the same color—you can mix and match. This gives you the freedom to choose different sizes for top and bottom without paying extra, which is ideal if your measurements fall into different size categories.
bralette and briefs set
Fit guidance
Best for
- People who want a comfortable, everyday bralette and briefs set that moves with them
- Those who value the flexibility to mix and match sizes between top and bottom
Not for
- Those who need high-impact support for intense workouts—consider a sports bra instead
- Those who prefer a very snug, compressive fit—consider sizing down and testing the fabric's stretch
