Vionic Womens Sierra Sneaker Faux Leather^Synthetic Sporty cool and retro flair make these VIONIC&#174; with Orthaheel&#174; Technology sneakers the perfect complement to those casual days. Received the APMA Seal of Acceptance. Synthetic leather upper in a sporty silhouette. Slip-on design with elastic at the instep for plenty of stretch. Textile lining keeps feet cool and dry. Textile-covered footbed for all-day comfort and support. Features the Orthaheel premium "Active" removable biomechanical footbed. Flexible and lightweight rubber outsole with patterned tread. Invented by Australian podiatrist Phillip Vasyli, this shoe features biomechanical orthotic technology that supports feet and helps realign the lower legs to reduce over pronation and associated aches and pains. Imported. Measurements: Weight: 9 oz Pr