Shaft measures approximately 9 from arch Boot opening measures approximately 12" around WOMEN'S ALL WEATHER WINTER BOOT is your new go-to waterproof snow boot for anything and everything around town during the winter months. Shop, run errands and explore—all in dependable comfort and style! INCREDIBLY STYLISH, COMFY & WARM thanks for a soft faux fur lining, Thermolite insole and Vylon upper. Even the coldest of winter winds are no match for the Women's boots, which is rated down to -20°F. Slip on and off easily with a gusseted zipper that locks out moisture. ULTRA WATERPROOF, TOTALLY BREATHABLE: The Women's boots prevent the slow creep of water into your socks that often happens when you're out in the snow all day. They're also super breathable so feet stay dry and comfortable, even after hours of activity. TRUST YOUR FOOTING to non-slip, grippy soles. The rubber soles feature TOTES' unique tread pattern (see photos) for dependable traction on slick, snowy and wet surfaces. Take on stairs, sidewalks, and icy driveways with confidence.