These noodles are authentic Japanese-style soba (buckwheat) noodles 15.1 oz. 86g. X 5) , with bonito broth, kelp stock and a rich soy sauce flavor. The noodles are made from buckwheat flour, wheat flour, and yam flour, which gives them a smooth and chewy texture. Product specifications for Itomen Yamaimo Soba 5 servings 15.1 oz/ 430g. Allergens: Wheat, Yam, Buckwheat, Soybean, Fish, Milk, and Monosodium Glutamate (MSG).