The Field Tech Short Sleeve Shirt is worth every penny. Dealing with constant heatwaves in the Northeast, requires a unique and versatile shirt that can be breathable yet wind resistant. This shirt accomplishes the task. Having just got back from over 600 miles on a motorcycle in 90+ degree heat, the **** was perfectly comfortable. Most shirts in this heat, will leave a bit of sweat at the small of your back, but not the 1620 shirt. After all these miles on the road, I was perfectly dry. Even while maintaining highway speeds, you couldn’t feel the air pushing through the shirt. After so many miles, the shirt was a filthy mess from the oils, bugs, and other stuff in the air that accumulates on your body after so many highway miles. A quick wash and the shirt is just like new.