Pages start to tear from the top. The night before the trip, the side came loose on the outside of a boot. (The photo shows that I tried to sew an hour before the flight!) In the afternoon at the airport, the second side began to separate, then the sewn part also came off. I was so embarrassed to wear them. **First of all I LOVE them because they fit perfectly and are very comfortable. They are as light as slippers! I wish the material wasn't cheap or it weakens or breaks with the shoe's threads.