Yes. The arch is a molded piece that is part of the shoe. If you have had any other Ahnu footwear it is the same comfortable support the others have. Even the Ahnu footwear that looks as though it might have little or no support have an amazing amount of arch support built in.
Answered on 4/16/2016 1:14:17 PM by pmontenc from Coastal NC
Does not look like there is any built in arch support, however-I have very high arches and have found these sandals comfortable after wearing them for hours. You are able to cinch the straps tightly and I have found this helpful in stabilizing my foot and cradling my arch.
Answered on 4/17/2016 6:22:33 PM by upstate RS from NY