Arch Support Flip FlopsFoam Foam sole In built Arch Support encourages optimal foot posture, aiding whole body alignment. Perfect for people with Plantar Fasciitis Specialized material molds to the unique shape of your foot. Given the supporting nature of the material, give them a day or two to wear in and you'll be in love with your Archies! Ultra strong one piece design makes Archies Flip Flops extremely durable and much less likely to have those annoying blow outs!