From Vionic, the Walk Max II Lightweight Knit Sneakers feature: Breathable knit upper Received the APMA Seal of Acceptance Back pull tab Adjustable lace up closure Fabric lining Built-in VIOMOTION Technology footbed with contoured arch support and deep heel cup Lightweight midsole rebound technology Durable rubber outsole Approx. 1.25" platform height Approx. 1.75" heel height It is recommended you wear your new pair for a few hours to let you feet adapt to the new support. Imported.