COROS Heart Rate Monitor - Grey - HRM-GRY PR Originals So this vest is ideal

So this vest is ideal when temps and lights are low

Ultra-lightweight visibility enhancing minimalist LED vest with front and back reflective booster zones

It includes eight removable stainless-steel pins to help grip the track

-Targeted ankle and heel support protects ankles during quick movement

Men's Therma-FIT Water-Repellent 1/2-Zip Running Top

COROS Heart Rate Monitor - Grey - HRM-GRY PR Originals So this vest is idealComfortable and simpler to wear than a chest strap. Easy to adjust the fit and remove the sensor for quick cleaning. COROS latest multi channel optical sensor for precise measurement. Up to 3 simultaneous connections with Bluetooth enabled devices. Wear detection allows for automatic device pairing for new workouts. 38 hours of full operation or 80 days in standby mode on a single charge. Rechargeable with a magnetic USB charging cable. Arm Size: