Protect my red bottoms!
I actually wore my pumps before getting these sole protectors and scuffed the soles just a bit.  I followed the instructions (just like applying a screen protector on your phone,) with no problems.  I didn't have any air bubbles as I applied them.  I walked around my home on carpet and hardwood floor with no incident.  At the time of this review, I only wore them out  (mostly on carpeted floor at the office) one time and I had absolutely no trouble with the protector on my soles; they didn't feel more or slippery than without.  Additionally, upon looking at them, you can barely tell that they are on the shoes!  I will give them a few more tries and post a follow-up review.
Rating: 5 stars