Suunto Smart Heart-Rate Strap Features_Organic Cotton the headband is easily adjustable

the headband is easily adjustable and maintains excellent support throughout long and committed races

and quick-drying polyester blend treated with our proprietary ActiveIce™ technology

1/4” Hex Bit Driver

Chest Uni can be combined with an Atlas Belt or Master Belt to create a comfortable

Suunto Smart Heart-Rate Strap Features_Organic Cotton the headband is easily adjustableThe Suunto Smart Heart Rate Belt provides accurate heart rate data without compromising comfort. 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 has an R R memory that is used when the watch is not