Coros Heart Rate Monitor - Grey BF20 This pack contains 1 support

This pack contains 1 support

Flat toe seam

The unique ingredient in these socks is the Polygiene® technology

outseam - 16 in / 41 cm

Two light modes

Coros Heart Rate Monitor - Grey BF20 This pack contains 1 supportCompatible 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. The Coros Heart Rate Monitor arm belt prevents clothing or gym equipment from getting caught: giving more mobility and comfort to the wearer, versus a traditional chest strap. Features: Comfortable and simpler to wear than a chest strap. Easy to