Garmin Premium Heart Rate Monitor Strap is the perfect replacement for your Garmin unit. This Monitor Strap is very comfortable and easy to swim with too. Works in a crowded environment of over 80 ANT+ monitors within 30 feet radius.
The new HRM soft strap, which is rugged enough to withstand swimming.
Although heart rate data does not transmit while underwater, this new waterproof strap means a triathlete can plan ahead by wearing the strap under a wetsuit, shaving crucial seconds off his or her transition time.