adidas Men's Heart Rate Monitoring Techfit Shirt, Black, Medium
Adidas smart apparel uses exclusive heart rate sensing technology that is knit directly into the fabric so you'll get the benefits of heart rate coaching without the strap. Our smart apparel is a comfortable, convenient and accurate alternative to traditional heart rate monitoring chest straps that often bind, chafe and slip during workouts. Put on our Smart Shirt, snap in the adidas heart rate monitor and use our Train & Run app to track your workout in real-time and reach your fitness goals. Machine washable. Heart rate monitor pod is not included and must be purchased separately. Sizing: Guys, it's important that your heart rate monitoring training shirt have a body hugging fit. Close contact is the only way the sensors can do their job. Here's the easiest way to choose your size. Measure the circumference of your torso just below your chest muscles. This can be done with a fabric tape measure or with a piece of string and metal tape measure. Small (35 - 37 inches), medium (38 - 40 inches), large (41-43 inches), x-large (44-46 inches).