Maximize your workout with the NuMetrex Men's Cardio Shirt featuring special sensing fibers knit directly into the fabric! This "heart smart" shirt senses your pulse and transmits it wirelessly via a snap-in transmitter to a heart rate monitoring watch or heart rate monitor-enabled fitness machine. Now those cumbersome and uncomfortable chest straps won't get in your way to achieving your ultimate fitness goals. Medium, Large or XL.

NuMetrex Heart Rate Monitoring Racer Tank Features:

• Comfortable fabric wicks away moisture
• Connects with most fitness machines with integrated monitoring devices
• Transmitter and monitoring devices sold separately
• Sizes as measured below pecs around ribcage — Medium (36" to 38"); Large (38" to 41"); and XL (41" to 44")
• Made in China