Durable steel, yet as light as a feather! The simply and stylishly designed Stanley AeroLight thermal mug works perfectly during commutes or on the office desk. AeroLight is suitable for hot and cold drinks and is surprisingly lightweight compared to similarly sized thermal mugs. The secret lies in Stanley's AeroLight technology, which does not compromise on durability or thermal performance. Coffee or tea stays hot, and cold drinks remain refreshing for hours. The lid closes tightly, allowing you to toss the mug in your bag or backpack without the risk of leaking. This largest mug in its series has a volume of 0.6 liters, making it suitable for multiple coffee breaks.