We took our popular Merino 150 Base Layer and added a 1/4 zip to it. This Smartwool® base layer is amazingly versatile and perfect for unpredictable weather—working as a single layer when it's warm out and the perfect start for more layers when the sun begins to hide behind the clouds. With Raglan sleeves and a flatlock seam construction designed to minimize chafing, you'll be able to rely on constant comfort all day long.
This breathable, soft, lightweight fabric offers next-to-skin comfort, moves sweat away from the body, and acts as a versatile performance layer for warmer conditions.
Merino fibers wrapped around a nylon core for added durability while still keeping the comfort of Merino next to skin