The tongue is cutting in to the front of my ankle. If I got caught in the rain they would take forever to dry. I sat on the plane reading this book. Only problem was that the button was seemingly already pressed deep into the device. Conclusion: I have an absolute hatred for these slippers and have thrown the nasty things in the trash. Overall design was nice and comfortable but unfortunately did not work. I recommend replacing the laces like I did with "Stout Gears Reflective No Tie Shoelaces Lock System - Elastic Shoe Laces". The shipping from owlsbooks was horrid. The stand seemed fairly rigid before I installed the shelves and after it was even more so. I only walked in them for a few minutes.