The Perfect At-Home Sizing Guide to Finally Get a Sports Bra That Fits

| Style

When's the last time you were sized for a sports bra? If the answer is "never," you're not alone. Finding a well-fitting sports bra is super tricky; finding the line between locking in the girls and being able to breathe is easier said than done.

Photo Credit: Road Runner Sports
(Photo: Road Runner Sports)

Luckily the folks at Sweaty Betty are professionals and shared a few tips with Well+Good.

“I think the most common problem that women face—and it’s ultimately why people wear the wrong size—is that they don’t know how a sports bra should actually fit before they put it on,” explains Jessica Adamson, underwear designer at Sweaty Betty. “Perhaps surprisingly to some, a well-fitted sports bra should feel noticeably tighter than a regular everyday bra.”

If you're still not sure, check out this sizing guide for the perfect sports bra below.

The Sweaty Betty At-Home Sizing Guide

Calculating underband measurement: 1. Place the measuring tape around the underbust, ensuring that it is sits flat and horizontally, and pull the end of the tape tight so that it overlaps at the front. 2. Take a note of this measurement in inches, rounding up to the next full number. 3. If this is an even number, add 4 inches. If this is an odd number, add 5 inches. (For example: If the underbust measures 28 inches, the underband size will be 28+4=32 inches.)

Calculating cup size: 1. Place the measuring tape around the fullest part of the breast, normally at nipple level, ensuring that it sits flat and horizontally around the body. Pull the end of the tape so that it overlaps at the front ensuring that it fits loosely, so not pressing into the breasts. 2. Take a note of this measurement in inches, rounding up to the next full number. 3. Sizing: If this measurement is the same as the calculated underband measurement then this will be an A cup. +1 inch more than calculated underband—B cup +2 inches more than calculated underband—C cup +3  inches more than calculated underband—D cup +4  inches more than calculated underband—E cup +5  inches more than calculated underband—F cup

Now that you know your size, go find a well-fitting sports bra and get sweaty!

>> Work: The Best Workout to Zap Your Trouble Spots