Size/Fit Summary: Fits slightly larger. If you are in-between sizes, it is recommended to size down. Our new Sherpa Snow Boots provide warmth and stability on icy, wet and snowy surfaces. Weather protection is very important to us, which is why these water-resistant boots are lined with soft, vegan shearling, insulated to temperatures as low as -22°C (-8°F) and have a drawstring closure for extra heat retention. These black boots will see you through the harshest winter months.