This shell is so effective! I use it for sport and alpine climbing, hiking/backpacking, in town, and motorbiking! It's durable enough to wear climbing. At 11.2oz, it's not the lightest shell on the market, but arguably more versatile and durable than something lighter. I often replace it for my rain jacket too since it has proven effective to keep me dry in light rain storms. Love the stretchy fabric and roomy side zip pockets. At 5'3” and 135lbs, I got a medium, which is pretty baggy, but still looks good and has plenty of room to layer, which was important for me. For a more fitted look, I'd go with the small. The length is good for staying put underneath a harness to block wind too.
I was expecting something slightly thicker, but I'm pleased with it's wind resistant performance. The material used is has a nice quality to it. I went with the Trillium/ Pewter. The color is pleasantly brighter in real life than in the picture online.The side arm pocket, like all side arm pockets, is the shiz.Also, it tucks neatly into the hand pocket, which is great when you need to throw it in your pack next you your Nutella sammy.