CampFiendwrote a review of Arc'teryx Squamish Hooded Jacket - Men's on May 15, 2014
Familiarity: I've put it through the wringer
Fit: True to size
This is my go to jacket for most all things spring/summer/fall. I literally take this jacket everywhere as it is always in my truck. Specifically stuffed in its own pocket in the glove box. Yes, it is that handy. It is great for those "Oh, crap, I wish I had a jacket" moments. Not too heavy but just enough to take the edge off. I use it for hiking, camping, backpacking, and running (more or less everything). Material is great and tear resistant. It is not waterproof but will bead up nicely and keep you dry in a light drissle.
Fit is true to size, I am 5'11'' 185lbs and a medium is perfect. The napoleon pocket is fantastic and also doubles as the stuff sack. The velcro adjustments on the sleeves allow for a perfect fit and the hood is great when you need it.
If you don't have this jacket, you should probably get it.