Women's Vionic Indigo Flip-Flops This toe-post sandal is designed for warm-weather comfort with support built in. The cotton webbing strap and toe post provide a soft, easy feel in an everyday silhouette. VIO MOTION™ Technology supports alignment with contoured arch support, shock-absorbing cushioning, and a deep heel cup for stability. Finished on a 1.375" platform for cushioned lift and daily wearability.