Trying to find a good mid-layer
I've recently acquired a Under Armor Coldgear Compress as a base layer and a NEFF 10k jacket as a softshell, but I was wondering what to buy (If needed) as a mid-layer.
I was thinking of some sort of pullover, without zippers.
Can someone point me on some sort of direction here?
p.s.: I'm from Europe (Portugal) and I have no stores around with that kind of material, so I would have to buy it from the interwebs, from an Europe site preferentially.
Thanks in advance!