Using your Lilly Pulitzer thermal mug is easy. Just open the clear acrylic lid, pour in your favorite hot or cold drink, and close the lid tightly. The silicone seal will help keep the beverage inside and maintain the temperature. When it comes to cleaning, you can wash it with mild soap and warm water. Avoid using abrasive cleaners that could scratch the stainless steel body. To keep it in good condition, dry it thoroughly after washing. Don't put it in the dishwasher as it may damage the lid or the insulation. Also, don't use it to hold carbonated drinks as the pressure may cause issues with the lid seal. Enjoy your drinks on the go with this great travel mug!