Sports bras are a necessary evil. I’m not the bustiest runner, but even I need a high-support bra to neutralize the laws of physics. Adding a chest strap to the mix, however, often feels like I’ve signed up to run 13 miles with a python squeezing my chest. Which is why the $149.99 Garmin HRM-Fit chest strap is a stroke of genius.
To get why the HRM-Fit is so great, you need to understand how regular chest straps fail sports bra wearers. Traditional chest straps are typically an elastic…