COROS Heart Rate Monitor Sandals The advanced formula is a

The advanced formula is a dry

Stretch woven fabric

the jacket self-stuffs into the left handwarmer pocket with a carabiner clip-in loop

and chafe-free liner

Reflective X logos for greater visibility

COROS Heart Rate Monitor Sandals The advanced formula is aHRM GRY Comfortable and simpler to wear than a chest strap. Easy to adjust the fit and remove the sensor for quick cleaning. Our latest multi channel optical sensor for precise measurement. Up to 3 simultaneous connections with Bluetooth enabled devices. Wear detection allows for automatic device pairing for new workouts. 38 hours of full operation or 80 days in standby mode on a single charge. Rechargeable with a magnetic USB charging cable. PRECISE