Made from Smartwool’s lightest-weight Merino jersey fabric with a nylon core, the Men’s All Season Half Zip Baselayer provides year-round comfort and durability. Zip up for extra warmth during colder weather and zip down when the sun starts shining.

Merino 150 is a breathable, soft, lightweight fabric that offers next-to-skin comfort, moves sweat away from the body, and acts as a versatile performance layer for warmer conditions. The shoulder and seam construction are designed to minimise chafing while wearing a pack.

• Lightest-weight Merino jersey fabric with a nylon core for increased durability while still keeping 100% Merino wool next to skin
• Flatlock seam construction designed to minimise chafing
• Offset should and side seams designed to increase comfort
• Side seams wrap to front for body-enhancing fit
• 8-inch (20cm) center front zipper with semi-locking slider
• Slim fit
• Material: 87% Merino Wool, 13% Nylon
• Colour: Black