This isn't my first pair so I was a little shocked when it happened so quickly. the insole has a silk lining. I'm actually surprised at how cheap the insole is, but I digress. After 3 days and less than 24 hours total wearing time, the silk part came loose. So I'm wondering, are these just bad shoes or bad quality control? I'll find something else next time. Fast forward now. I have ordered a second pair. Almost immediately I noticed pain in my hip. I thought of old age, gout, something else…