MOTTERU - Microwave-Safe Thermos Bottle - Thermos Stainless - Thermos Stainless Bottle - Vacuum Double-Wall Construction - Brand Name: MOTTERU Material: Stainless Steel This thermos bottle is designed with the concept of “Thermos Stainless.” The resin part is microwave-safe, allowing you to reheat lukewarm drinks multiple times. After adding sugar or syrup, simply swirl it in an arc to easily mix the ingredients from the bottom—no stirrer needed! The outer stainless steel layer features a