A highly technical shoe engineered for walking, Walk Max boasts our highest rebound yet with its rocker bottom outsole to enhance your walking motion combined with super critical foam for ultimate cushioning and Vionic's supportive footbed. Designed with exclusive alignment technology to balance the whole you. Design: Breathable mesh upper Durable rubber outsole for traction Tested by Heeluxe: The footwear industry gold standard, Heeluxe uses patented technology to analyze comfort and performance against competitive styles, in conditions that duplicate real-world wear Vionic's lightest midsole yet, this nitrogen infused midsole offers the highest rebound to enhance your walking motion Water Repellent: Treated with a water repellent coating to repel water on contact Vionic's Vio-Flex footbed is a flexible, lightweight compound offering optimal moisture control including a perforated heel for added breathability Helps correct pronation and promotes full-body alignment and many different types of foot ailments Built-in VIO MOTION Technology footbed featuring contoured arch support, with shock absorbing cushioning, deep heel cup to provide stability and forefoot flexibility For optimal comfort, wear your new Vionic shoes for a few hours to let your feet adapt Within 1-2 weeks, you should experience full orthotic comfort and support 1.8 inch(es) heel height