NWT, unfortunately just a tad too small for me to wear with big socks. Size 10 OMNI-HEAT: Our patented Heat Reflective lining is the ultimate heat management system for outdoor performance. The metallic dot patterned inner lining is designed to retain heat, while the breathable lining dissipates moisture OMNI-TECH: Our proprietary technology provides air-permeable protection that's waterproof and breathable, keeping mother nature's elements out, at the same time allowing the inside to breathe, keeping you dry and comfortable no matter the conditions SLIP-ON STYLE: A stylish slip-on and waterproof winter boot. Made with a quilted upper, an elastic gore enclosure, and webbing details — engineered for a variety of cold weather and wet activities COZY COMFORT: It features rich 200g insulation, along with a removable contoured PU footbed for long lasting comfort and warmth ADVANCED TRACTION: Our signature Omni-GRIP non-marking traction rubber outsole providing versatility for all winter wear DESCRIPTION: Slip on these supremely warm, waterproof, insulated boots and your feel will be cozy in an instant—and stay that way all day. Columbia's Omni-Tech waterproof and breathable technology is what sets this boot apart, delivering the ultimate protection from the elements. Mid-calf design, these snow boots feature our heat reflective thermal lining, keeping feet warm and toasty in the coldest of environments. With the insulated flexible upper, and non-marking traction rubber outsole,