The lightest, most flexible boot in the Winter Mix collection. With surface-gripping traction and Thermalite insulation with a temperature rating of -40 degrees Fahrenheit, the Snow Quest Lite keeps feet toasty warm for hours of outdoor play. Waterproof, synthetic upper. Temperature rated to -40 degrees to ensure a warm wearing experience. Injected molded EVA shell with 360 degree flex for a lightweight, comfortable fit.