Having had a formal clothing policy at my previous job, these would have been lifesavers. Having to walk back and forth/up and down stairs in heels throughout the day, my feet begged for relief during lunch hour. Had I had these on my soles, relief they would've received.
These would be perfect for train-commuting ladies in larger cities. It would be so much more comfortable and convenient (and cool) to just add my heels to my shoes when I get to work. Plus, it beats carrying around my heels in my purse until I get to work and switch out of my flip flops. What a great idea!