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. Features a breathable mesh upper and a durable rubber outsole for traction. Tested by Heeluxe for comfort and performance. The lightest midsole yet offers the highest rebound. Treated with a water repellent coating. The Vio-flex footbed offers optimal moisture control and breathability. Built-in Vio Motion technology footbed features contoured arch support and forefoot flexibility, helping to correct pronation and promote full-body alignment. 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. Heel height approx. 4.5 cm. Upper: PU & Fabric, Sock & Lining: Fabric, Sole: Rubber.