Start your day with our Forma Professional 13.5-ounce Glass Travel Mug. With a double wall design, this coffee tumbler keeps drinks hot or cold for longer. Made from borosilicate glass, this cup resists breakage. Able to handle sudden temperature changes from -40F to 300F, this double wall coffee mug offers great versatility. Showcasing hand-blown glass, this travel coffee cup adds elegance to your routine. To prevent spills, the included silicone lid of this reusable coffee cup forms a tight seal. The lid of this clear coffee mug has a spout for smooth sipping. Fitted with a silicone sleeve, this glass coffee mug offers a secure grip and protects hands from heat. This cup is microwave- and oven-safe for flexible heating. To chill cold drinks fast, this glass cup is freezer-safe. This double-walled mug is dishwasher-safe. Measuring 3.5 inches in diameter by 5.9 inches in height, this travel mug holds 13.5 ounces. Sold in a 1 count box.