Great midlayer for active and cool weather use - Montane Allez Micro Pull-On - Men's

I've tried this only as a light midlayer (a little over 5 oz in M) over a t-shirt for hiking in cool conditions, but it has been perfect. On strenuous hikes in cool weather, it breathes well enough that I haven't wanted to take it off, but it still kept me warm enough during rest/snack breaks. It doesn't block wind at all, but under a light wind shirt I stayed very comfortable on the breezy Oregon coast with temps in the 50's and no sun.I think this will be a great layer for hiking in the mountains and year round use in cool coastal conditions. Highly recommended.