A cup of hanging ear coffee in the morning, the whole day’s essence is brought up from a cup of delicious coffee. The cup body is made of high-quality borosilicate glass, which can withstand temperatures from -20? to 100. Removable silicone sleeve, heat insulation, and anti-slip, with no deformation, can be independently disassembled for cleaning. The lid of the cup is spill-proof, dripping water at any angle, put it into the bag for more peace of mind. Colorful, choose as you wish, there is always one you like. Large caliber rounded mouth, wide mouth design, easy to clean. Silicone material, comfortable to touch, stylish, and beautiful. Measuring 6.5*3.54 inches, this custom silicone sleeve glass coffee mug 16oz. Usage Scenarios: Office supplies, school stationery, corporate promotions, trade show giveaways. Customization: Logo printing available with multiple packaging and color options. Product Highlights: BPA-free, leak-proof, travel-friendly.