Not quite the arch support I was hoping for.  Definitely a higher arch than most sandals/flip flops give but not quite as high as I hoped for.  My right ankle and foot have been hurting a lot more after wearing these.  It actually seems I am more in pain than I was before.  I was hoping for the arch support I need for my plantar fasciitis that I heard Vionic was known for and in a sandal/flip flop for the summer.  I have to wear specific arch support sneakers all the time for this but wanted something different for the summer.  These are quite hard and uncomfortable.  Disappointed with the quality and comfort of these shoes considering the high price/cost.