Insulated Tumblers Available in 20 oz. or 30 oz. Includes sliding closure lid and metal straw Keeps drinks hot or cold Shipped within individual white boxes. Do not microwave Placing it in the dishwasher will damage the insulation properties, it will not damage the design print. The design is printed on one side Cindy Lindgren Designs: We've partnered with the talented, Cindy Lindgren. Cindy is an illustrator based out of the Twin Cities area. Her love of nature and the Midwest shines through her artwork. She draws everything by hand in pencil before finishing her designs on the computer, where she carefully chooses rich color palettes to compose the final version of her illustration.