Fernandwrote a review of Merrell Ascent Shirt - Long-Sleeve - Men's on July 29, 2010
Excellent shirt, design, fabric, features, and engineering. Unfortunately, this model runs a very tight fit, close to the body. The fabric is stretchy, so it will not be restrictive, but unless you have an athletic, adonis of a body, the shirt will look cool when it's not on you!
I use a large precisely because I like a loose fit in my active shirts, and this shirt sticks close to my body, unlike any of my other name brand technical shirts.
If you like a looser fit, go up one size. And don't worry because the shoulders, the sleeves, and the overall length are not oversized, like other size "Large" shirts. It's almost as if this "Large" size is actually really a medium. That's exactly how it's proportioned.