Sports Bra Fit Process

Finding the right sports bra can be tough - but it doesn't have to be.

If you’re physically active, it's time to invest in a good one (or two!). It's estimated that approximately 80% of women wear the wrong size sports bra and many are wearing ones that are old and unsupportive. Like shoes, sports bras break down over time and lose their supportive properties as they get older. Your sports bra should be replaced every 6 - 12 months and you should be fitted for a new one every year. 

If you’re looking to be properly fitted for a new sports bra, stop by any Philadelphia Runner location and ask one of our expert staff members! 

Assistant Manager Jess is ready to help find the right fit for you.

Assistant Manager Jess is ready to help find the right fit for you.


Our Bra Fit Process

Step 1: We start the fit process by asking you about you and your activities in order to find the right sports bra for your individual needs. 

Step 2: We take measurements to determine your band and cup size. 

  • Determine your band size by measuring the smallest distance above your bust. 
  • Measure around the fullest part of your bust.
  • Calculate the difference between the two measurements to determine the corresponding cup size.

Step 3: We select a few sports bra for you to try on. Make sure you move around! 


A few things to look for when choosing a sports bra...

Comfort: A good sports bra should feel comfortable, stay in place, and not chafe. The band is the foundation of the bra and should be comfortably snug to offer support, but not feel restrictive. Straps should also feel snug but not uncomfortable or dig into your shoulders.

Support: Your breasts should feel secure and supported. If there’s too much movement or spillage,  we'll help you find a better-fitting bra. Compression bras will offer support for small to medium breasted women (A/B cup) or you can choose an encapsulating style if prefer a bra that offers shaping and support. For women with larger breasts (above a C), a combination of compression and encapsulation will offer maximum support. 

  • Pro Tip: Thin straps provide less support than wider straps.

Fabric: The fabrics of a sports bra should be moisture wicking, quick drying, and breathable to allow sweat and heat to pass through.  

  • Pro Tip: Hand wash and hand dry to help your bras last longer.