Girls' Itasca Sonoma Toddler & Little Kid Frost Winter Boots Designed to keep tiny toes warm and dry, the Itasca Sonoma Infant Frost Boot is built for winter play and chilly days. With its waterproof rubber shell and insulated textile upper, it shields against snow and slush while locking in warmth. The hook-and-loop strap and bungee laces make for a snug, secure fit that’s easy for parents to adjust. A cushioned insole and rugged lug outsole add comfort and traction, making this a dependable cold-weather boot for infants.