Smartwool Merino wool thermal base layer

Discover the new classic Merino thermal base layer t-shirt for men, even better than before. We have updated this 100% Merino wool favourite with new colours and a new fit to enhance functionality while boosting the aesthetics. The shoulder panels eliminate top seams, and a flat seam construction helps to prevent irritation. Add one of our best cold weather base layer t-shirts to your winter wardrobe and feel the difference the next time you go skiing, hiking, climbing, or biking.