YIN SONGElastic Loop Nylon Armband Compatible with Polar OH1/Verity Heart Rate Sensor Replacement Strap - Black, Large

Old HR arm band had stretched out. This fits my polar OH1 heart rate monitor snuggly and I can make the band tight again! No problems after a few thousand yards of swimming.

The product does work to hold the Polar Verity. But unlike the bands that Verity makes where it is pretty easy to pop the tracker in and out, this one has the tracker go all the way inside a cylinder with holes for the button. This makes it REALLY hard to get the tracker in and out. I'd purchased this for keeping my tracker on in the shower -- so I could saw back to a dry band when I was done. And this is just too hard for my fingers to change out regularly.