This Viking Extreme Warm boot for kids combines an award-winning design with reliable waterproof protection and cozy insulation for chilly outdoor play. Constructed from Elastopan, the boot is 100% PVC-free and 40% lighter than comparable PVC or rubber boots, making all-day wear easier. A thermo membrane, wool/polyester lining and a detachable polyester/wool insole lock in warmth, while the TPU/PU midsole and rugged outsole deliver stable traction on wet or snowy surfaces. An adjustable drawcord cuff keeps snow and slush out, and kid-tested, parent-approved performance provides dependable comfort for winter adventures.