Smartwool’s Classic Thermal Merino Base Layers are made of 100% responsibly sourced Merino wool to help your little ones stay comfortable on snow days and activities in the mountains. With a flatlock seam construction designed to help prevent chafing, a crew neck built with set-in long sleeves, and all of the benefits of Merino, this kids' base layer will help them enjoy winter more. Smoke free home Washed in cold/woolite Great gently used condition Size XS, age 4-5