I have no comparison to the expensive sport shirts but for my purposes it does very well this shirt. In the gym much more comfortable than cotton. Breathe well and leads to a degree from gewisen dioe moisture from the body. On the treadmill's then but critical but long sticks not as heavy as a conventional T-shirt on the body. Total wearing comfort, therefore I made the purchase recommendation to those who are looking for a lightweight sports shirt and it does not want to spend a fortune. Size Tip: Bin 1.90 tall, slim and trained with quite broad shoulders - size M is sufficient for me but slack off, otherwise it will be too long.