The Coros heart rate monitor band is designed for a snug and easy fit, enhancing heart rate accuracy during workouts. It is made from a blend of polyester fiber, nylon, and spandex, ensuring it remains breathable and comfortable even during long training sessions. The band includes the phrase "explore perfection" printed on it.

Features:

• Only compatible with COROS Heart Rate Monitor
• Material: polyester fiber, nylon, spandex
• Arm Size: 18-32cm (standard) 
• Snug and easy fit for enhanced heart rate accuracy
• Breathable and comfortable during long workouts
• "EXPLORE PERFECTION" included on the band