COROS Heart Rate Monitor splitboard Two large side pockets for

Two large side pockets for larger water vessels

Stays extra snug when plugged into your watch

and skyrunning are becoming increasingly popular all over the world

keeping you cool

The interchangeable

COROS Heart Rate Monitor splitboard Two large side pockets forThe COROS Heart Rate Monitor delivers accurate optical heart rate tracking in a more comfortable, low profile design than a traditional chest strap. Worn on the arm for a secure, distraction free fit, it provides reliable data for running, ski touring, cycling, training, and endurance sports without restricting movement or causing pressure points during long efforts. The advanced multi channel optical sensor is designed to stay flush against the skin