The jacket is extremely light and extremely thin. In "very hard" winter temperatures certainly not warm enough, but just wonderful for all bit milder temperatures on. They are very very warm for its lightweight. Today I ran only with a T-shirt underneath the park around: warm! It is cut to figure, so you do not like a fleshed sofa cushion runs through the city, but well dressed. Personally, I find the jacket really cool. I have them in black. One should buy a bit bigger if you a sweater etc. will go underneath. I have size 40 and the jacket in XL is zero too large.