I have both kinds of jackets. Since the Netherlands average colder weather, I would take along a wool coat. Wool will keep you much warmer than a leather jacket any day. In my opinion, wool will wrap in in your own warmth (so you can go out an site s...
The percentage of wool is high enough that it should be reasonably the same as 100% wool for this purpose, although it may not felt as well. This must be the Patons yarn you saw. They have a wool/soy blend.
Types of Wool: Chenille Felt Flannel Garbadine Melton Serge Tweed Worsted Tweed, worsted and felt are usually used for coats. the jacket your showing looks like worsted. Super warm, usually made for military coats. Hope this helped.