As someone with lots of pain from plantar fascitis, take it from me, these help so much!  Had custom orthotics and SAS shoes which made it worse.  Sports Med. Dr. recommended these along with New Balance pressure relief inserts.  AAAHHH!  Much better.  These stabilize my foot and support as needed.  They do run narrow, so I got them in wide.  Actually have the gray suede which has held up well...better than I expected.  I bought 3 pair!  Highly recommend!!!