I drop my phone on a daily basis so having a good phone case is important. The metal finger rings on the back of some different types of cases are uncomfortable so I don't end up using them which results in more phone drops.
A friend of mine has a Loopy case and after wearing her phone around by the loop on my finger while we were at the beach wrangling kids, I went home and ordered a Loopy for my phone.
I have had a significant decrease in the number of daily drops, and it is all because the loop is comfy and it doesn't slip. Plus, they planted a tree with my purchase.
When this phone inevitably bites the dust, I will be purchasing a Loopy for my next phone as well.