Double Walled Glass Coffee Mugs, Glass Coffee Cugs with Silicone Lid 12OZ, Insulated Coffee Mug, Clear Coffee Mug for Travel/Kitchen(Black) The double walled glass coffee mugs is equipped with a

【Double-Layer Insulation】The double walled glass coffee mugs is equipped with a silicone lid, which can keep your hot drink warm for up to two hours. So you can enjoy your coffee leisurely without being too anxious. The double walled glass coffee mugs is designed with double glass. Air is sandwiched between the double-layer glass, which can not only effectively isolate part of the temperature, but also prevent hot hands.

【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.

【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.

【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.

【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.