Why you'll love it Trek confidently in any kind of wintry weather in our William Lo winter boots. Crafted from waterproof genuine leather, a lightweight Rubber He shell, and a rugged sole, these versatile boots were built to handle ice, snow, freezing temps, you name it. So whether you're shoveling the white stuff, or sledding with the kids, your feet are guaranteed to stay warm and dry thanks to a Thermal Guard liner and seam-sealed construction. UPPER Seam-sealed waterproof genuine leather upper: A sustainable and durable material that will last season after season. Waterproof genuine leather gusset tongue: Adds extra protection from the elements. D-ring lacing system: Provides easier tightening and loosening for a more customized fit. 8mm Thermal Guard removable liner (100% recycled content): Keeps your feet toasty warm down to -40°F. INSOLE Cleansport NXT™ treatment: A non-toxic treatment that maintains freshness and keeps odor away. OUTSOLE Waterproof and recyclable lightweight synthetic Rubber He shell: An eco-friendly material that keeps the wetness out. Rugged and flexible outsole: provides grip in snowy conditions. WHERE IT'S MADE Made in North America with Canadian and imported materials.