This line of athletic footwear features lightweight breathable knit upper, padded tongue & collar, and EVA midsole, and is constructed with the most advanced technological features that represent the highest standards in fit-manufacturing, performance and comfort. EVA Midsole Rubber outsole for traction and stability Padded tongue & collar A-Last for superior fit and function About the A Last A Last styles are recommended for those who have bunions, arthritis, diabetic feet, or who need shock removable insoles, high/wide toe box, adjustability, X-wide widths.