Carry cups aren't the same as travel mugs. They're wayyy cooler. Are they spill-proof? No. But they are guaranteed to make you look and feel amazing on your walk to the bus stop, in your front room while you supervise toddlers knocking into you, or when you're carrying a cup of coffee around while doing chores. I recommend washing in the dishwasher or using a baby bottle brush to cleanse between uses.