The Smartwool Kids' Classic Thermal Merino Base Layer Zip T uses our super soft midweight interlock knit. This versatile Zip T is great in cool conditions and when you need to stay warm. And when the sun comes out, just zip the collar down. With Smartwool® base layers, it's that easy.

• Slim Fit
• 100% Merino Wool fabric made with an interlock knit for enhanced comfort, breathability, thermoregulation, and odor resistance
• 7" (18 cm) center front zipper with anti-chafing chin guard
• Flatlock seam construction designed to minimize chafing
• 100% Merino Wool

Smartwool Style SW0SN111