HRM-Fit Sports Bra Guide
The HRM-Fit™ heart rate monitor works best with a sports bra that has a flat band around the rib cage. Good band compression is needed to minimize heart rate monitor movement and ensure good contact between your skin and the electrodes so that the heart rate monitor can accurately detect your heart rate.
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Band tightness The sports bra has medium or high support and tight compression designed for running, cardio, or high-intensity workouts. Two fingers fit snugly under the sports bra band, and you can't easily pull the band away. |
 
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Band and strap width The width of the sports bra band under the bust is approximately from 19 to 50 mm (from 0.75 to 2 in.). A long band may position the heart rate monitor too low on the torso for accurate heart rate. A narrow band may not have enough material to properly clip onto the heart rate monitor. |
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Zipper The sports bra does not have a zipper or other embellishment in the front that might interfere with the clips. |
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