The North Face Shellista Lace Up Boot. The insulation is 200g of PrimaLoft; that's pretty much the warmest option available in boots. If you live in the brutal northern states or just spend a lot of time outdoors, you'll appreciate the warmth that this boot provides. The lower section of this boot is completely waterproof and seam-sealed, and the upper quilted section is water resistant. Thermoplastic rubber bottom for durability 200g PrimaLoft Eco insulation for tons of warmth Waterproof lower/ Water-resistant upper Cold rated down to -25°F Flex grooves in rubber for easy flexing while walking Seam-sealed construction to prevent leaks Dual-density midsole cushions the foot TNF Winter Grip® rubber sole for good traction IcePick® temperature-sensitive lugs for extra grip on ice Faux-fur trim around New no box Size 9.5 Smoke free home Bundle discounts