The new KEEN Kids waterproof Lumi boot takes on the coldest of days with insulation rated to -40°F/-40°C. This ultralight, extra warm snow boot with cold-weather traction is well-suited to snowy winters.FeaturesSecure-fit lace-capture systemPadded tongue and collar for comfortRemovable felt liner with KEEN.WARM insulation rated to -40°C/-40°FKEEN.FREEZE winter rubber compoundMaterialWaterproof lightweight injected EVA shell and textile upperNon-marking rubber outsole leaves no trace