Smartwool Kids - Classic Thermal Merino Base Layer Bottoms (Toddler/Little Kid/Big Kid). Color Winter Sky Heather. Low Stock. On sale for $48.69. MSRP $65.00.. 4.6 out of 5 starsAdd to favorites. 0 people have favorited this6 left in stock+4Brand NameSmartwool KidsProduct NameClassic Thermal Merino Base Layer Bottoms (Toddler/Little Kid/Big Kid)ColorWinter Sky HeatherPrice$48.69MSRP: $65.00Rating5Rated 5 stars out of 5(28)