Boys' Sorel Toddler & Little Kid Yoot Pac Winter Boots The Boys’ Sorel Yoot Pac Winter Boots deliver dependable warmth, protection, and comfort for cold-weather adventures. Built with a waterproof seam-sealed construction, they combine a durable rubber shell with a synthetic leather upper for all-weather reliability. The removable felt inner boot and sherpa pile cuff add cozy insulation for snowy days.