Smartwool - Thermal Merino Rib Crew. Color Charcoal Heather. On sale for $88.80. MSRP $120.00.. 4.1 out of 5 stars+2Brand NameSmartwoolProduct NameThermal Merino Rib CrewGenderWomen'sColorCharcoal HeatherPrice$88.80MSRP: $120.00Rating4Rated 4 stars out of 5(47)