Crafted of temperature-safe borosilicate glass, Primula’s Double Wall Glass Mug is beverage technology at its very best. The unique mug design retains temperature so you can enjoy your hot or cold beverage longer and enables the mug to remain condensation-free. The rounded rim promotes dribble-free sipping. The carefully structured handle provides a steady and firm grip and feels secure and comfortable in your hand. This dishwasher safe 16 oz mug is durable and easy to clean, and may well quickly become your favorite go-to mug for coffee or tea.