Same experience here. After an entire summer wearing Birkenstocks, had to go back to sandals with orthodics as my plantar fasciatis flared up.
Nancy C. Estes nancy.es...@sbcglobal.net Paula, I wore Birkenstocks for years because they were the best thing for me for the least amount of pain. However the orthotics are deeper in the heel cup and that keeps your fascia from spreading sideways and allowing your weight to press down on the spur. They are ten times better than Birks. About $200 Regards, Trem