The Smartwool Women's Classic Th. Merino Base Layer 1/4 Zip is a real eye-catcher with its updated fit and design. This high-quality base layer, optimized for cold weather conditions, is made from responsibly sourced merino wool. Notable features of this model include shoulder inserts and flatlock seams, which reduce the risk of chafing. The material combines effective moisture management, temperature regulation, and odor control, particularly during demanding activities such as skiing, hiking, or running. The close-fitting cut and interlock knit provide a high level of comfort.