MLB Men's Boston Red Sox Big City Dreams Short Sleeve Basic Tee (Athletic Navy, XX-Large)

Clear training guidance and a quick start to heart rate-based training in an easy-to-use device. The EnergyPointer feature allows you to know if the main effect of your training is fitness training or fat burning, visually indicating the point between these two training effects. When your heart rate is below that point, you're improving your fat burning. And above that point, you're improving your aerobic fitness.

Vertical seams

Two flap pockets and two welt pockets