Our 100% Satisfaction Guarantee If for any reason you're not satisfied with your Smartwool® product, please return it to us within two years of purchase and we'll make it right.
Enjoy four seasons of great comfort, durability, and fit with our Men's Merino 150 Baselayer Long Sleeve. This year-round performer features our lightest-weight Merino jersey fabric with a nylon core to increase durability while still keeping 100% soft Merino wool next to skin. Its shoulder and seam construction is designed to minimize chafing while wearing a pack, and new select colorways feature a more responsible plant-based-dye technique. Gear up to go farther on every pursuit with this base layer.
Offset shoulder and side seams designed to increase comfort and minimize chafing
Side seams wrap to front for body-enhancing fit
Flatlock seam construction designed to minimize chafing