These snow boots are waterproof and insulated so they will keep your little one dry, warm, and comfortable while playing in the snow. The rubber molded outsole repels water to keep little feet dry while the super soft fleece lining on upper inside keeps feet warm. The sole has good traction to help grip wet and slippery surfaces. The velcro strap allows your child to put on/take off these boots with ease and the wide opening allows your child to easily slip their foot into and out of these boots. Temperature rated to -22 Fahrenheit and -30 Celsius. Used- still in great shape.