From shoveling the walk to commuting to the office, the Sperry Top-Sider Avenue Duck Wool Boot will keep your foot dry and warm. Its exterior features full-grain leather that is seam-sealed to keep snow and slush from sneaking in, and it's lined with wool to trap in heat while managing moisture. Sperry's Razor-Cut Wave-Siping helps the rubber sole grip slippery surfaces, helping eliminate embarrassing moments whether you're in front of your neighbors or coworkers.