Come and see our amazing products. One of the most important features of this 17oz coffee travel mug is to make sure it won't leak if it is knocked over or in a bag. Because a leak-proof screw cap is supplied that can be firmly attached. Together with a sealing ring, which means your drink is airtight to minimize the risk of spills. Drink hole on the top for easy sipping. Just bring your coffee cup to go! Pls confirm with us about the packing info, stock color and exact production time before placing your order.