If you have squeaky orthotics here’s an easy solution. Place cloth or duct tape on the underside of the orthotic as shown here.
The squeak occurs when the orthotic material springs on the shoe’s insole. Occasionally you will need to place the tape further back, but usually application as shown is sufficient to stop the squeak.
I have tried this many times, and the tape always comes off. Hockey tape gets all gooey and comes off in a lump, as well as leaving your shoe quite sticky. Masking tape just wears off. What tape works well?