I purchased this "jacket" for outdoor pursuits as well as trips kickin' around town. This is not only a great piece for transition seasons when it's not cold, but in the 40s - 50s. It's equally as stylish as my wife says that she really liked it on me. I'm 5' 11" 165 and the medium fits me very well. I can wear a thin mid-layer underneath for those mornings that are a tad bit chilly and it fits well.
I especially like that it has two hand pockets; something other lightweight pieces that I have lack. At first I was concerned about the buttons, but they work very well.
The only negative I have to say about it is the front chest pocket will not swallow my phone. But that's a minor issue.
It goes well with casual pants as well as with slacks. Overall it's an excellent addition to my outdoor kit.