Enjoy four seasons of great comfort, durability, and fit with our Men's Classic All-Season Merino Base Layer Long Sleeve. This year-round performer features our All-Season-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 help 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.

• Our slim fit is intended to follow the contours of the body
• Our lightweight Merino jersey fabric uses a recycled nylon core while still keeping 100% Merino wool next to skin
• Flatlock seam construction and offset shoulder and side seams designed to help increase comfort and minimize chafing
• Side seams wrap to front
• 88% Merino Wool, 12% Recycled Nylon. Exclusive of Decoration.
• Style: SW016953