View Merino Wool Base Layer Mens Reviews Images. Merino wool is the most common natural fabric base layer. Merino wool is the #1 choice for base layers, because the technical properties of merino wool make it incredibly high performing in a wide variety of in a hurry?
The base layer has additional length in the body so no cold wind can slip through the cracks.
Merino base layer questions (self.ultralight). Rated 4.8 out of 5. Merino wool is the finest wool fiber there is, making it way better than that sweater your grandma knitted there are a lot of great arguments over whether merino wool or synthetic materials are better suited for base layers. If you feel like that's too much, you can stick with your regular tops, socks, and outerwear.