Garmin chest strap fabric for Forerunner 305, 310XT, 405, 405CX, FR60, Edge 605, 705, Oregon 300, 400t, Colorado 300 Black (Electronics)
As I have read in other reviews during the first outings, heart values were totally aberrant (highly elevated). Everything is back to normal after four or five outings. Even early in the race, cardio hump correctly. Before contacting amazon sav, I