adidas Core 55 Women's training shoes feature a sleek, feminine asymmetrical upper which offers the support you need for a circular range of motion. Air mesh upper for maximum ventilation. Synthetic overlays for durability and support. Textile lining and EVA insole for comfort. TORSION® SYSTEM for midfoot integrity; Compression molded EVA midsole for lightweight cushioning. adiPRENE® under the heel for superior cushioning at impact. Non-marking rubber outsole.