The Merrell Thermo Rogue 3 boots are pretty solid when it comes to keeping your feet warm in cold weather. They've got 200 grams of PrimaLoft® Gold Eco Series Insulation, which does a great job of holding onto body heat.

According to the manufacturer, they've also got a GORE-TEX® membrane that keeps out water and wind, so your feet stay nice and toasty by blocking off that cold breeze. Our research found that a lot of folks noted their feet stayed comfy warm, even in temps as low as 20°F (-6°C).

The fleece lining and heat-reflective insole are also nice touches for added warmth. Plus, they have a Vibram® Arctic Grip™ outsole that gives you good traction on wet ice.

So, overall, if you're heading out into the cold, these boots should keep your feet feeling warm and cozy.