Smartwool Classic Thermal Merino 1/4 Zip Base Layer – Kids' Color:Charcoal Heather Built for bundling up babies

Built for bundling up babies and toddlers on cool-weather outings

A dual-layer CloudTec Phase® midsole with Helion™ superfoam delivers a soft

or gloves without bouncing around

back gel pocket

Smartwool Classic Thermal Merino 1/4 Zip Base Layer – Kids' Color:Charcoal Heather Built for bundling up babiesFor cold weather hikes, ski days, and chilly morning trail time, this midweight merino 1 4 zip is our top pick for keeping kids warm without the bulk. Merino wool regulates temperature naturally and fights odor through long days out, while the zip neck lets them dial ventilation on the fly. Works solo on mild days or as a reliable base under a shell when it gets serious. Midweight merino wool construction delivers natural warmth and breathability