Smartwool - Classic Thermal Merino Base Layer Bottom. Color Twilight Blue Heather. On sale for $86.25. MSRP $115.00.. 4.5 out of 5 starsAdd to favorites. 0 people have favorited this+9Brand NameSmartwoolProduct NameClassic Thermal Merino Base Layer BottomGenderWomen'sColorTwilight Blue HeatherPrice$86.25MSRP: $115.00Rating5Rated 5 stars out of 5(351)