The 12oz insulated wine tumbler with lid features double-wall vacuum insulation to maintain your beverage's temperature, ensuring it stays cold for 6 hours and hot for 3 hours. Crafted from 304 food-grade stainless steel, this stemless wine glass tumbler includes a BPA-free, straw-friendly lid, and a thermal copper lining for superior insulation. Ideal for both personal enjoyment and promotional use, it combines functionality with a sleek, modern design.