A base layer good enough to be the only layer.

Most base layers are built to be hidden. At 135 gsm this one is light enough to disappear under a shell and clean enough to wear on its own when the shell comes off. 100% merino wool spun to 19.5 micron, so it sits against skin without a hint of scratch.

Cold mornings, warm afternoons, a flight, a job site, a week in one bag. Wool handles the swing, and it does it without smelling the way a synthetic does by day two.

Fit

Semi-fitted through the chest and body. Size up if you are between sizes or want room to layer.

Why you will love it

Superfine merino: 19.5 micron, below the point where most people feel prickle.

Built for layering: 135 gsm, lighter than almost any base layer you own.

Moisture-wicking and odor-resistant: several days of wear between washes.

Made in America: knit in the Carolinas, cut and sewn in New England.

Specs
Fabric: 100% merino wool jersey, 19.5 micron, 135 gsm (4 oz)
Origin: Knit in the Carolinas. Cut and sewn in New England. See how it is made
Care: Machine wash cold, lay flat to dry.