I have spent the last 10 years traveling to Europe at least once and usually twice a year and during that time I have contnued to research and refine my gear in the pursuit of "packing light" and packing right. I have settled on a carry-on that works for me but I still was trying to find the "perfect fleece jacket". I aways carry a fleece jacket and a light rain jacket when I travel because I like to go during the shoulder seasons (April-mid June, Sept-Oct.) In the past I used a Marmot Mica light rain jacket and Kuhl fleece pull over, these worked well but two years ago I switched to a Scottevest Tropoformer jacket because I like all the inside pockets for days when I was traveling and the sleeves pop off to make a vest for warm weather. This week I decided to get a Patagonia Micro-D fleece jacket and I have to say it is very thin yet soft and packs down to a small package yet when I go outside in 40 degree weather is was plenty warm. Another nice feature is that it fits under the Tropoformer jacket easily and when I wear them together I'm good down to the mid 30's. I'll be in Greece in early May and it will be the first road test for my new fleece jacket. I've learned so much from this forum and appreciate all the help everyone has given me.
(Disclaimer: I am not affiliated with any on the above companies in any way, but I do like their products)