Smartwool · Base Layers
The Classic All-Season Merino 1/4-Zip Baselayer Top offers lightweight comfort for outdoor activities over 50°F. Made with merino wool for natural moisture, temperature, and odor control, it includes durable nylon-core fibers for stretch and softness. Features a slim fit with stretch stitching for a full range of motion and a front zipper with a locking slider for adjustable coverage.