Savor your beverages with our Forma Professional 11.8-ounce Glass Travel Mugs. Designed with a double wall, these travel mugs provide superior temperature retention. Manufactured from premium borosilicate glass, these coffee cups do not break easily. Each coffee cup can withstand sudden temperature changes from -40F to 300F. These mugs have a hand-blown glass design and offer an elegant aesthetic. The silicone lids included in these cups form a tight seal to avoid spills and leaks. Featuring an elevated spout, these clear coffee mugs minimize drips and dribbles. These reusable coffee cups come with silicone cup sleeves, providing a comfortable grip. To offer versatile heating options, these glass coffee mugs are conveniently microwavable and oven-ready. These coffee tumblers are freezable. To make post-drinking cleanup a breeze, these tumblers are dishwashable. These cups measure 3.1 inches in diameter by 6.3 inches in height and can hold up to 11.8 ounces. Sold in a 10 count box.