Coros Heart Rate Monitor Mace the top of the sock

the top of the sock has extra stretch for easy on/off—without losing its shape or falling down

It's powered by Dri-FIT technology to help you stay dry and comfortable

Medium: Men's 7–10

Ankle gaitor helps limit trail debris intrusion

Coros Heart Rate Monitor Mace the top of the sockCompatible with any Bluetooth heart rate enabled device, the COROS Heart Rate Monitor delivers over 38 hours of continuous accurate heart rate monitoring to track your workouts in distraction free comfort. Simpler to wear than a chest strap, soft fabric band lays flat around your arm and locks in place with its textured surface. The low profile design prevents snagging on clothes or gym equipment, allowing you to forget you're even wearing it. Optical