Enjoy your cool drinks stored in this freezer-friendly 28 Oz.(828 ml) Double-wall insulated Vacuum Tumbler . It is designed with a stainless steel interior and exterior walls with copper insulation that can both hold hot or cold beverages. The lid is made of translucent AS Plastic available in vibrant colors. Direction for cleaning: Hand-wash only. Customize this with an imprint of your company name and logo for maximum exposure. Call and inquire now!