Allow your child to be their wild self, even when the temperature drops, in the Smartwool Kids Classic Thermal Merino Zip T Base Layer. This slim-fit layer is made with 100% soft Merino wool and offers insane comfort and warmth. The fabric is naturally odor-resistant, breathable, and comfortable. It also thermoregulates to help seal the warmth in and keep the cold out. The quarter-zip front allows for a slightly customized look that suits your child's unique personality. With an anti-chafing chin guard and flatlock seams, your kid will be incredibly comfortable in this versatile base layer.