Smartwool Women's Classic Thermal Merino Base Layer Bottom Plus Boxed 2025

Whether you're working up a sweat or simply looking to stay warm and comfortable, our Women's Classic Thermal Merino Base Layer Bottom Plus is up for the challenge. 100% Merino wool fabric enhances comfort and breathability while staying odor resistant. The Flatlock seam construction is designed to minimize chafing, so you can stay as comfortable as possible, from exploring to chilling.