Comfort rated to temperatures as low as -22F, the Borealis Boot from Baffin is no shrinking violet when it comes to seriously cold weather. In fact, they come equipped with a removable and wearable liner for warmth and extra versatility, as well as a Polar Rubber sole for traction on snowy, icy surfaces. And since all of that heat-trapping technology isn't going to do your feet much good if your socks are wet, these boots are built around a completely waterproof upper to keep cold, wet snow, slush, or water from ruining your day.