www.themightymug.com

It wasn't what I ordered in the first place.

A perfect gift for any traveller, or boater! On any smooth surface these mugs don’t tip over and spill. What a treat!

Just what I wanted. A smaller mug in matte black that won't spill when it may perhaps topple over. Excellent choice.

For people like me that are always knocking things over, this mug stays in place. I hold plenty of coffee and keeps it warm along with not getting spilled. Ingenious design that works as it should to prevent spills. I love mine and use it almost every day.

This mug is all that and a bag of chips! I am an ardent coffee drinker and have purchased several cups looking for one that would keep my coffee hot. I have found the perfect cup. In addition, my job does not allow employees to have drinking cups at their desk unless the cups are spill proof. You can slap this cup with a lot of force and it goes no where. You will not be disappointed.