You wear a coat in the winter. Why should your feet endure the cold months in the equivalent of a light t-shirt? These adidas Ultraboost running shoes are made with COLD.RDY tech to keep feet warm and dry in all kinds of weather. The adidas Primeknit upper is insulated and water-repellent. A Continental™ WinterGrip™ Rubber outsole keeps your footing secure wherever the day takes you.