I have a pair of Orthaheel thongs that I have been wearing for years around the house.  They are still going great--the footbed, arch, and heel cradle are just like they were 12 or so years ago when new.  I bought this sandal to replace those thongs for my house shoes, and now the old thongs are my yard slippers.  I have plantar fasciitis, and for 19 years not able to walk far without a supportive shoe with a custom-made orthotic, but I don't wear my street shoes in my house, so these have served me well.  I would say the shape of the Orthaheel foot bed is as supportive as my custom orthotics that I paid several hundred dollars each for.