Smartwool - Plus Size Classic Thermal Merino Base Layer Crew. Color Winter Sky Heather. Low Stock. On sale for $56.83. MSRP $115.00.. 4.8 out of 5 stars1 left in stockBrand NameSmartwoolProduct NamePlus Size Classic Thermal Merino Base Layer CrewColorWinter Sky HeatherPrice$56.83MSRP: $115.00