COROS Heart Rate Monitor Size:STANDARD Estimate how fit you are

Estimate how fit you are compared to your actual age

Low-profile design with AirScape backpanel and rolled

and 95% recycled REPREVE® Performance Microfiber

The closed heel foot pocket is fitted to efficiently transfer power from foot to fin while the short blade is calibrated to allow for a consistent kick tempo while maintaining proper technique

COROS Heart Rate Monitor Size:STANDARD Estimate how fit you areComfortable 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. FEATURES &