This shirt is great for cool mornings and evenings. It isn't a full wind shirt but almost there. It's great in light rain. The material is a little rough at first but it breaks in and is really stretchy. It won't keep you warm but is really stylish and comfortable.

The switchback is really light, really comfortable to move around in. (The fabric (nylon/spandex) is hard, but very elastic, like thick paper)I feel like I'm not wearing another layer of clothing if I'm using it. It's good protection against rain, okay against wind, but not at all for warmth. The collar and wrists are lined with a really soft fabric. Overall, I got it as a gift, and wouldn't pay 150 dollars for it myself, but if you want a REALLY lightweight, REALLY comfortable jacket that will protect you from some water and a little wind, (And you have 150 to spare) then go for it. I love it.
(I have black, better than sandstone)