“Very supportive, they don’t flap when you walk and the sizing is pretty good. My feet are an E fitting and they are snug but not tight and in any case the strap is adjustable - the only thing I would say is that my wider feet are right at the edge of the footbed and I don’t think you’d get away with it if your feet are any wider.
I can wear these all day with just as much comfort as my nhs insoles.”