This 12 oz Stainless Steel Wine Tumbler features a double wall vacuum insulation for optimal temperature control. The design is printed using dye sublimation on both sides, with a sleek and straight egg shape. The lid and plastic straw are included for convenience, and it is also dishwasher safe. Please note that while heat can cause gradual fading of the image over time, there is no glitter used in the production of these cups.