I used this in winter with a base layer and a long sleeve thermal top. I'm now using it in spring with just a base layer. I am 5'9 and 68kgs and went for large, as I wanted to use it for layering. I could, arguably, have got the medium if I really wanted skin-tight performance. It's warmer than it looks, quite light and can shake off a little bit of rain. I'd happily recommend it.
- Dry quickly
- Good cut