Powered by Vio Motion™ Technology to balance the whole you. The Etna features a cross-band upper with soft, tubular leather straps for a comfortable, stylish fit. A molded footbed and TPR outsole provide all-day cushioning, while a medial gore ensures an optimal, flexible fit. Uppers: Leather or suede. Microfiber-covered footbed that offers a smooth feel and enhanced breathability. Lightweight, flexible EVA midsole absorbs shock, reducing stress on feet, ankles, and knees. Durable synthetic rubber outsole designed to withstand everyday wear. Built-in VIO MOTION Technology footbed featuring contoured arch support, with shock-absorbing cushioning, deep heel cup to provide stability, and forefoot flexibility. Heel Height: 1.125" Platform Height: .75" Outsole: Flexible TPR Received APMA Seal of Acceptance.