Archies Footwear are designed by a certified physiotherapist to offer maximum support and align your entire body, setting them apart from generic flip flops. Up to 2.2cm of orthotic support in the arch encourages optimal foot posture aiding whole body alignment. Moulds To your Foot: our specialist closed cell foam material is formulated to mould to your foot. One Piece design: our ultra stong one piece design makes Archies footwear extremley durable and less likeley to blow out. Tight stretchable strap: your toes dont have to grip to keep your flip flops on. Walk without overusing tendons and muscles in the feet. Give the straps a little stretch to suit. When ordering a pair of Archies Flip Flops, Slides or Insoles, we recommend you choose your normal running shoe size. Half Sizes:If you are normally a half size we recommend you size up to the nearest full size. Eg. If you are normally a size 7.5 we recommend ordering a size 8.