Smartwool · Base Layers
The Classic All-Season Merino 1/4-Zip Baselayer Top offers lightweight, year-round comfort. Made with next-to-skin merino wool, it provides soft, odor-resistant, and temperature-regulating performance. Recycled nylon core enhances durability while minimizing environmental impact. Features a slim fit with wrapped, flatlock seams that follow body contours and an 8-inch zipper for ventilation or added coverage.