Meet the Men's Alpine Crew. Made with 100% Merino wool, this thermal layer offers the moisture management, temperature regulation, and odor resistance properties of Merino wool. It’s cut to a regular fit to help give you room to move without additional bulk, and it has a mesh zone at the center back to help with breathability. Needless to say, it'll be the first thing you grab when you need a warmer layer for your high-intensity, cold-weather adventures.