☕ Sip, Savor, and Stay Stylish! Innovative vent hole design prevents bursting and ensures longevity. Elevate your coffee experience with a sleek, modern design. Dishwasher safe for effortless maintenance. Perfect for coffee, tea, smoothies, and more—indoors or outdoors. Crafted from lead-free borosilicate glass for a healthier planet. Leak-proof silicone lid Insulated for 2 hours Heat-resistant up to 300°F The PARACITY Double Wall Glass Coffee Mug is a 15 oz insulated coffee cup made from high borosilicate glass, featuring a leak-proof silicone lid and a unique vent hole design for safety. It keeps beverages warm for up to two hours and is perfect for a variety of drinks, making it an ideal choice for both home and outdoor use.