Time for a Gilet
"I've never owned a Gilet before. I've seen them around and thought "aren't your arms cold". But in the right conditions this is a great addition to my wardrobe. I wore mine on a recent autumnal hike and it was just right. You can feel the warmth immediately you put the Gilet on, the length is good and covers your lower back nicely. I found large has just the right amount of room to allow some airflow and not feel too restricted. Good quality, as you'd expect from ZONE3. Nice colour, a bit different than your normal ones, but not silly bright. Good purchase."