Warmies offer a range of microwavable products that includes Warmies® Plush Neck Wraps. Heat them up quickly in the microwave time and time again without any concerning the loss of heating capacity in the long run. That makes them a smart short- and long-term investment. Quick facts: Simple to use - just warm in a microwave. Can be reheated hundreds of times. Do NOT immerse in water or wash in the washing machine - surface clean only with a damp sponge.