The Smartwool Men's Classic Thermal Merino Base Layer Bottom is a better fitting, more functional warm tight in 100% merino wool. It's in Smartwool's warmest weight wool fabric for cold days on the hill or trail.
A warm merino bottom makes a huge difference on cold lift rides, and this one fits well and stays comfortable all day.
Skiing, winter hiking and cold weather layering. Ready for storm days at Monarch Mountain.
