COROS Heart Rate Monitor - Grey SHIP_UK_ONLY Contains cutting-edge molecules to fill

Contains cutting-edge molecules to fill large holes and tears

Style with a little tulle skirt and tights underneath

Large zipped back pocket and two inside pockets for essentials and valuables

Bounce midsole

COROS Heart Rate Monitor - Grey SHIP_UK_ONLY Contains cutting-edge molecules to fillOptical heart rate sensors work by using light to measure blood flow in capillaries beneath the skin. The top of your wrist is a convenient place for a watch, but is a challenging location for even the best sensors. Wearing on the arm offers our optical sensor an optimal amount of blood flow to gather heart rate data with accuracy equivalent to that of a traditional chest strap. PRECISE DATA. TOTAL COMFORT. Compatible with any Bluetooth heart rate