I love these sandals.  First I bought the light blue ones in 8 to 8 and a half and the the red ones 9 to 9 in a half.
My problem is my left foot is a good half size larger than my right foot and as I age my feet seem to widen which
is fairly common.  I like the idea that I can velcro these to fit my feet comfortably.

I have 3 pairs of these sandals and they are made very well with a good arch.