The Finger Loop!!!! I can't believe I went all these years without a finger loop tumbler. I am a English major college student and I work 2 jobs, so I am always running around with my arms full. I also drink a lot of coffee, I had a shelf full of other tumblers and when I discovered this one let me just say a lifesaver. When I have to get to class or work I grab my bags and books, and it makes it a breeze to grab your cup. I would have spills on my shirt or pants with others since the lids are usually push down and this one spins on. I have to say I want more to now fill the empty shelf as I gave away all of my others since they are in my opinion worthless.