WHICH BETTY DESIGNS BRA IS RIGHT FOR YOU?  

You may have noticed by now that we have a few different types of bras. Between the Tri Bra, Sports Bra, and the Run Crop, there are multiple options to choose from, depending on what kind of activity you’re getting into.

Many of you have asked about the differences between the Tri Bra and Sports Bra because, admittedly, they’re kind of hard to tell apart! 

So let’s dig into the details.

OUR NEWEST ADDITION: THE TRI BRA

Introduced in 2026, the Tri Bra is quick-drying and durable, made to pair under your triathlon top, race suit, or cycling jersey. It's just as great worn solo for a swim or a hot summer ride. Straight out of the water it dries fast, and stands up to getting wet all over again when you cool off mid-run. The Tri Bra is built with premium UPF 50+ Italian Shield Fabric for sun protection and proprietary Seamlink 4-way stretch stitching that moves with you to reduce chafing. Plus, the Tri Bra works great as a standalone run top, too! The neckline is a little higher than the Sports Bra, and it fits a little more snug, for aero- and hydro-dynamics. 

#1 CUSTOMER FAVORITE: THE SPORTS BRA

The Sports Bra is made from a softer, brushed Italian UPF 50+ fabric and has a small, center front pocket to stash a key, gel, or your favorite lip balm. The soft fabric is great for running, yoga, your HYROX workout at the gym, and can also be worn under your tri pieces if you want something a little looser than the Tri Bra. The most visible difference however, is the keyhole cutout in the back. Bring on those tan lines.

We’d be remiss not to talk about the Run Crop here, so if you’re curious, keep reading…

A SPORTS BRA, BUT MAKE IT FASHION: THE RUN CROP

Our Run Crop is the Sports Bra’s stylish, sexy sister, with a higher halter neckline and more coverage overall, but in the same soft Italian fabric. This one brings style and can be worn on its own or under any of our tops. Its slightly longer length makes it perfect for trail running, sitting comfortably under a hydration vest on long runs.

Each bra style provides medium support and fits similarly. You should wear the same size in all bra styles. So if you’re a large in the Sports Bra or Run Crop, the Tri Bra will fit great in a large as well, even if it feels slightly tighter.

Which will you choose?

If you’d like to learn more about Betty’s sizing, check out our Size Guide.

Shop all Betty Designs performance sports bras and crops here.