When the conditions are really harsh you need footwear that's going to keep you warm, dry and up on your feet. There are a number of technologically advanced new wellington boots on the market for just this kind of usage. Some wellies feature thick waterproof neoprene, in some cases combined with an added layer of fleece inside, offering warmth and comfort down to temperatures as low as -60 degrees celsius. Some lines also incorporate specially designed anti-grip soles offering significantly advanced levels of traction on dry and wet ice.