COROS Heart Rate Monitor Band Dry Bags With an intuitive high-flow bite

With an intuitive high-flow bite valve

Drawstring waistband for secure fit

Made from food grade and heat resistant silicone

and compact lantern

UV Cut is a measure (percentage) of how effective a fabric is at blocking UVA and UVB radiation

COROS Heart Rate Monitor Band Dry Bags With an intuitive high-flow biteOnly compatible with COROS Heart Rate Monitor Material: polyester fiber, nylon, spandex Arm Size (Standard): 7. 09 12. 6 inches (18 32cm) Arm Size (Large): 9. 4 16. 9 inches (24 43cm) Snug and easy fit for enhanced heart rate accuracy Breathable and comfortable during long workouts "EXPLORE PERFECTION" included on the band