【Double-Layer Insulation】These double-walled glass coffee mugs feature a silicone lid that retains heat, allowing your hot beverage to stay warm for up to two hours. This means you can savor your coffee at a relaxed pace without feeling rushed. The design includes two layers of glass with air trapped in between, which not only helps to insulate the temperature but also protects your hands from heat.
【Easy to Use】Our glass coffee cups is equipped with a heat-insulating and leak-proof silicone lid, so water will not leak out easily. At the same time, there is an opening on the lid of the glass coffee mugs. You can easily drink directly with one hand without having to struggle to open the lid.
【High Borosilicate Glass Material】The glass coffee cups is made of heat-resistant lead-free borosilicate glass, which is healthy and environmentally friendly. Borosilicate glass allows the glass coffee mugs to withstand a sudden temperature difference of -20°C-150°C. You no longer have to worry about your double walled glass coffee mugs breaking due to alternating between hot and cold.
【Wide Application】Our glass coffee cups has a crystal-clear appearance, smooth and delicate lines, feel good and easy to hold. Clear glass coffee mugs are perfect for brewing tea, coffee, lattes, smoothies, desserts and juices. Whether at home or traveling, the silicone lid double walled glass travel coffee mug can provide you with a lot of help.
【Safe Vent Hole】 The Double wall glass has a pinhead-sized hole somewhere in the glass. These holes will not let water enter, which can well reduce the glass bursting during use. Water and air can only be expelled, not entered. They will be completely hermetically sealed. Therefore, our double walled glass coffee mugs have high safety and long service life.