Natural Rubber Rain Boots | Sizes 4-2Y When the rain falls, stay warm and dry with Stonz Rain boots for toddlers. Made with toxic-free natural rubber with non-slip, super flexible soles keep your toddler exploring, no matter the weather. Wide opening makes it easy for your child to put on and take off on their own. Choose from our selection of solid color and your favorite print pattern waterproof rubber boots for kids!