Spring skiing or summer camping? The year-round Merino 150 Base Layer Long Sleeve is game for either. With Smartwool's Core Spun technology, they wrapped lightweight Merino around a nylon core for added durability, while still keeping the comfort of ultra-soft, responsibly-sourced Merino next to skin. Smartwool added smooth flatlock seams to help minimize chafing and offset shoulder and side seams to lie smoothly beneath pack straps. Select colorways feature a more responsible plant-based-dye technique. No matter the season or the activity, this base layer is made for it.
- Slim fit
- Smartwool's lightest weight Merino jersey fabric uses a nylon core to increase durability while still keeping 100% Merino wool next to skin
- Offset shoulder and side seams designed to increase comfort and minimize chafing while wearing a backpack
- Side seams wrap to front for body-enhancing fit
- Flatlock seam construction designed to minimize chafing