【Double-layer Insulation】This clear coffee mug features a unique double-layer insulation design, meticulously crafted to create a barrier that feels comfortable to the touch. This special construction not only significantly reduces heat loss but also maintains the freshness of your beverage for longer, ensuring every sip is a perfect delight. 【100% Borosilicate Glass】This glass coffee cups is made from high-quality borosilicate glass, offering exceptional heat resistance ranging from -22℉ to 302℉. Its lightweight yet durable nature surpasses conventional glass, making it the ideal choice. 【Comfortable】 The double walled glass coffee mugs features a rolled edge design that perfectly fits your lips, enhancing the experience of tasting coffee flavors. Unlike common double-layered glass coffee cups on the market, the handle of this cup is specially designed to accommodate various hand sizes. 【Multipurpose for Your Choice】This glass cup is multi-purpose, suitable for holding various types of beverages. Its clear design is not only fashionable and elegant but also allows you to enjoy the color and layers of the drinks inside, enhancing your dining experience. 【Ideal Gift 】This double wall glass tumbler comes with a beautiful and safe package, suitable as a gift for your family or friends on special occasions such as weddings, parties, birthdays, housewarming and anniversary. 16oz double walled glass coffee mugs 2pack