Smartwool Classic Thermal Merino Base Layer Crew - Women's Clothing : Nightfall Blue Heather : Stay warm, move free! Meet the women's classic thermal Merino 250 Base Layer Crew by Smartwool, crafted for ultimate cold-weather performance. With a slim fit, cozy crew neck, and long sleeves, this base layer keeps you insulated and comfortable in every winter adventure. Enhanced with a new, improved fit, shoulder panels, and flatlock seam construction, it's designed to prevent chafing and ensure smooth layering. ; 100% Merino wool. ; Machine washable. ; Imported. Measurements: ; Length: 25 in ; Product measurements were taken using size XS. Please note that measurements may vary by size. | Smartwool Classic Thermal Merino Base Layer Crew Women's Clothing Nightfall Blue Heather : XL