Suunto Smart HR Belt Triathlon Suits because they’re designed with feel good Colour:Matte Pebble Mist because they’re designed with feel good features like the Virtually Seamless™ toe and the 4 Degree™ elite fit system for a dialed in fit Featuring many tech features from our top of the line XC race shoes The belt provides superior performance in sports where hand movement disturbs wrist heart rate measurements and allows measuring heartrate wearing the watch on top of the sleeve or attached to the bike handlebar or even not carrying the watch at all during the exercise The Suunto Smart Heart Rate Belt provides accurate heart rate data without compromising comfort